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#6cd3fb

a light, electric cyan · cool · closest name: Sky Blue

RGB
108, 211, 251
HSL
197°, 95%, 70%
CMYK
57, 16, 0, 2
Luminance
0.5674

At a glance

Every number on this page in one read: what #6cd3fb is made of, how bright it looks, and which way it leans.

Hex
#6cd3fb
Hue
197°
cyan
Saturation
95%
electric
Lightness
70%
light
Brightness
98%
HSV value
Perceived
75%
weighted brightness
Luminance
0.5674
WCAG relative
Temperature
Cool
94/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
12.35:1
Closest name
Sky Blue
ΔE2000 3.6
Where it sits
Hue197° of 360°
Saturation95%
Lightness70%
Temperature
Warm ← → Cool94% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Every format

HEX#6cd3fb
RGBrgb(108, 211, 251)
HSLhsl(197, 95%, 70%)
CMYKcmyk(57%, 16%, 0%, 2%)
LABlab(80.0 -18.9 -28.7)
LCHlch(80.0 34.3 236.6)
OKLCHoklch(0.820 0.111 226.0)
Decimal7132155
Display P3color(display-p3 0.424 0.827 0.984)

Copy-ready code

/* CSS */
color: #6cd3fb;
background-color: #6cd3fb;
/* Tailwind (arbitrary) */
class="text-[#6cd3fb] bg-[#6cd3fb]"
/* SCSS */
$brand: #6cd3fb;
/* SwiftUI */
Color(red: 0.424, green: 0.827, blue: 0.984)
/* Android */
Color.parseColor("#6cd3fb")
/* Flutter */
Color(0xFF6CD3FB)
/* Python / OpenCV (BGR) */
(251, 211, 108)

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #6cd3fb · 12.35:1
Use #000000AAA at every size.
Aa
White text · 1.70:1
AA fail · AA large fail · AAA fail
Aa
Black text · 12.35:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #6cd3fb as text scores 1.70:1 on white and 12.35:1 on black.

Accessibility — WCAG contrast

Aa
#6cd3fb on white: 1.70:1
AA ✗ fail · AA-large · AAA
Aa
#6cd3fb on black: 12.35:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #BDCFFD
deuteranopia · #A9C0FB
tritanopia · #00DFE0

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #6cd3fb is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F1FAFD
#E4F5FB
#C2EAFA
#92DEFC
#6cd3fb
#25BEF9
#06ADEE
#0591C7
#04749F
#085573
#053548
Base = 400Lightest = 50 · #F1FAFDDarkest = 950 · #053548
:root {
  --brand-50: #F1FAFD;
  --brand-100: #E4F5FB;
  --brand-200: #C2EAFA;
  --brand-300: #92DEFC;
  --brand-400: #6cd3fb;
  --brand-500: #25BEF9;
  --brand-600: #06ADEE;
  --brand-700: #0591C7;
  --brand-800: #04749F;
  --brand-900: #085573;
  --brand-950: #053548;
  --brand: #6cd3fb;
  --brand-ink: #000000;
}

Colors that work with #6cd3fb

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F4F9FA
Tinted page background
Border#C0E0ED
Hairlines and dividers
Muted text#4B849B
Captions on the surface
Accent#CB0701
Second voice, not a rival
Dark variant#035A7C
Hover, pressed, headers
Light variant#E6F8FE
Selected rows, tints
Dark surface#142024
Dark-mode background
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

How to use #6cd3fb

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Card and section backgrounds
  • Brand accents, badges and data highlights
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • White text placed on it
  • Thin strokes and 1px borders — they disappear on light UI
  • Pairing with a same-lightness hue — edges vibrate

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#FB946C
Analogous left#6CFBDC
Analogous right#6C8BFB
Split-complement 1#FB6C8B
Split-complement 2#FBDC6C
Triadic 1#FB6CD3
Triadic 2#D3FB6C
Tetradic#DC6CFB

RGB percentages

Red42.4%
Green82.7%
Blue98.4%

CMYK percentages

Cyan57.0%
Magenta15.9%
Yellow0.0%
Key (black)1.6%

Color previews

#6cd3fb text on a black background

contrast 12.35:1

Card sample

#6cd3fb text on a white background

contrast 1.70:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #6cd3fb;
Background color
Panel with #6cd3fb background
background-color: #6cd3fb;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #6cd3fb;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(108, 211, 251, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(108, 211, 251, 0.45);
Border & gradient
Gradient panel
border: 3px solid #6cd3fb;
background: linear-gradient(135deg, #6cd3fb, #6C74FB);

Monochromatic scale

Palettes built from #6cd3fb

Shades — darker

Tints — lighter

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#6cd3fb in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyTravelHealthcareMedia
Common UI roles
SurfacesBadgesHighlightsEmpty states
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

#6cd3fb, answered

What color is #6cd3fb?

#6cd3fb is a light electric cyan, closest to Sky Blue (ΔE2000 3.6). It sits at 197° on the hue wheel with 95% saturation and 70% lightness, which reads as cool.

What is the RGB value of #6cd3fb?

rgb(108, 211, 251) — 108 red, 211 green and 251 blue out of 255, or 42.4% / 82.7% / 98.4% by channel.

Is #6cd3fb a light or a dark color?

It is a light color. Relative luminance is 0.5674 and perceived brightness is 75%, so black text on it reaches 12.35:1.

Should I use black or white text on #6cd3fb?

Black. It scores 12.35:1 against #6cd3fb, versus 1.70:1 for white — AAA at any size.

What is the complementary color of #6cd3fb?

#FB946C sits directly opposite on the wheel. Softer options are the split-complements #FB6C8B and #FBDC6C, which give the same contrast with far less vibration.

What colors go well with #6cd3fb?

For interface work: #F4F9FA as the surface, #C0E0ED for borders, #4B849B for secondary text, #CB0701 as an accent and #035A7C for hover and pressed states. For a palette, the analogous pair #6CFBDC and #6C8BFB stays calm, while #FB946C is the loudest partner.

What is #6cd3fb in CMYK for printing?

cmyk(57%, 16%, 0%, 2%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #6cd3fb warm or cool?

Cool — it scores 94 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #6CFBEF; nudged cooler, #6BBFFD.

Work with #6cd3fb in the Color Lab