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#1ceaf4

a balanced, electric cyan · cool · closest name: Cyan

RGB
28, 234, 244
HSL
183°, 91%, 53%
CMYK
89, 4, 0, 4
Luminance
0.6562

At a glance

Every number on this page in one read: what #1ceaf4 is made of, how bright it looks, and which way it leans.

Hex
#1ceaf4
Hue
183°
cyan
Saturation
91%
electric
Lightness
53%
balanced
Brightness
96%
HSV value
Perceived
78%
weighted brightness
Luminance
0.6562
WCAG relative
Temperature
Cool
89/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
14.12:1
Closest name
Cyan
ΔE2000 5.5
Where it sits
Hue183° of 360°
Saturation91%
Lightness53%
Temperature
Warm ← → Cool89% 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#1ceaf4
RGBrgb(28, 234, 244)
HSLhsl(183, 91%, 53%)
CMYKcmyk(89%, 4%, 0%, 4%)
LABlab(84.8 -41.3 -17.9)
LCHlch(84.8 45.0 203.4)
OKLCHoklch(0.853 0.142 200.5)
Decimal1895156
Display P3color(display-p3 0.110 0.918 0.957)

Copy-ready code

/* CSS */
color: #1ceaf4;
background-color: #1ceaf4;
/* Tailwind (arbitrary) */
class="text-[#1ceaf4] bg-[#1ceaf4]"
/* SCSS */
$brand: #1ceaf4;
/* SwiftUI */
Color(red: 0.110, green: 0.918, blue: 0.957)
/* Android */
Color.parseColor("#1ceaf4")
/* Flutter */
Color(0xFF1CEAF4)
/* Python / OpenCV (BGR) */
(244, 234, 28)

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 #1ceaf4 · 14.12:1
Use #000000AAA at every size.
Aa
White text · 1.49:1
AA fail · AA large fail · AAA fail
Aa
Black text · 14.12:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #1ceaf4 as text scores 1.49:1 on white and 14.12:1 on black.

Accessibility — WCAG contrast

Aa
#1ceaf4 on white: 1.49:1
AA ✗ fail · AA-large · AAA
Aa
#1ceaf4 on black: 14.12:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #D7DFF5
deuteranopia · #BDCBF5
tritanopia · #00F3ED

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #1ceaf4 is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F2FCFD
#E5FAFB
#C3F6F9
#94F5FA
#5EF0F7
#1ceaf4
#0BDFEA
#09BAC3
#08959C
#0A6C70
#064346
Base = 500Lightest = 50 · #F2FCFDDarkest = 950 · #064346
:root {
  --brand-50: #F2FCFD;
  --brand-100: #E5FAFB;
  --brand-200: #C3F6F9;
  --brand-300: #94F5FA;
  --brand-400: #5EF0F7;
  --brand-500: #1ceaf4;
  --brand-600: #0BDFEA;
  --brand-700: #09BAC3;
  --brand-800: #08959C;
  --brand-900: #0A6C70;
  --brand-950: #064346;
  --brand: #1ceaf4;
  --brand-ink: #000000;
}

Colors that work with #1ceaf4

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#F4FAFA
Tinted page background
Border#C0EBED
Hairlines and dividers
Muted text#4B979B
Captions on the surface
Accent#F91745
Second voice, not a rival
Dark variant#06747A
Hover, pressed, headers
Light variant#E7FDFE
Selected rows, tints
Dark surface#142424
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 #1ceaf4

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
  • 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
  • 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#F4261C
Analogous left#1CF492
Analogous right#1C7EF4
Split-complement 1#F41C7E
Split-complement 2#F4921C
Triadic 1#F41CEA
Triadic 2#EAF41C
Tetradic#921CF4

RGB percentages

Red11.0%
Green91.8%
Blue95.7%

CMYK percentages

Cyan88.5%
Magenta4.1%
Yellow0.0%
Key (black)4.3%

Color previews

#1ceaf4 text on a black background

contrast 14.12:1

Card sample

#1ceaf4 text on a white background

contrast 1.49:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #1ceaf4;
Background color
Panel with #1ceaf4 background
background-color: #1ceaf4;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #1ceaf4;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(28, 234, 244, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(28, 234, 244, 0.45);
Border & gradient
Gradient panel
border: 3px solid #1ceaf4;
background: linear-gradient(135deg, #1ceaf4, #1C5AF4);

Monochromatic scale

Palettes built from #1ceaf4

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.

#1ceaf4 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
ButtonsLinksFocus statesCharts
Print note

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

#1ceaf4, answered

What color is #1ceaf4?

#1ceaf4 is a balanced electric cyan, closest to Cyan (ΔE2000 5.5). It sits at 183° on the hue wheel with 91% saturation and 53% lightness, which reads as cool.

What is the RGB value of #1ceaf4?

rgb(28, 234, 244) — 28 red, 234 green and 244 blue out of 255, or 11% / 91.8% / 95.7% by channel.

Is #1ceaf4 a light or a dark color?

It is a light color. Relative luminance is 0.6562 and perceived brightness is 78%, so black text on it reaches 14.12:1.

Should I use black or white text on #1ceaf4?

Black. It scores 14.12:1 against #1ceaf4, versus 1.49:1 for white — AAA at any size.

What is the complementary color of #1ceaf4?

#F4261C sits directly opposite on the wheel. Softer options are the split-complements #F41C7E and #F4921C, which give the same contrast with far less vibration.

What colors go well with #1ceaf4?

For interface work: #F4FAFA as the surface, #C0EBED for borders, #4B979B for secondary text, #F91745 as an accent and #06747A for hover and pressed states. For a palette, the analogous pair #1CF492 and #1C7EF4 stays calm, while #F4261C is the loudest partner.

What is #1ceaf4 in CMYK for printing?

cmyk(89%, 4%, 0%, 4%). 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 #1ceaf4 warm or cool?

Cool — it scores 89 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #1CF4AF; nudged cooler, #19BAF6.

Work with #1ceaf4 in the Color Lab