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#2abbfd

a balanced, electric cyan · cool · closest name: Deep Sky Blue

RGB
42, 187, 253
HSL
199°, 98%, 58%
CMYK
83, 26, 0, 1
Luminance
0.4312

At a glance

Every number on this page in one read: what #2abbfd is made of, how bright it looks, and which way it leans.

Hex
#2abbfd
Hue
199°
cyan
Saturation
98%
electric
Lightness
58%
balanced
Brightness
99%
HSV value
Perceived
66%
weighted brightness
Luminance
0.4312
WCAG relative
Temperature
Cool
95/100 cool
Color family
Cyan
Tone
Electric
Best ink
Black
9.62:1
Closest name
Deep Sky Blue
ΔE2000 1.8
Where it sits
Hue199° of 360°
Saturation98%
Lightness58%
Temperature
Warm ← → Cool95% 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#2abbfd
RGBrgb(42, 187, 253)
HSLhsl(199, 98%, 58%)
CMYKcmyk(83%, 26%, 0%, 1%)
LABlab(71.6 -14.5 -42.9)
LCHlch(71.6 45.2 251.3)
OKLCHoklch(0.749 0.148 234.7)
Decimal2800637
Display P3color(display-p3 0.165 0.733 0.992)

Copy-ready code

/* CSS */
color: #2abbfd;
background-color: #2abbfd;
/* Tailwind (arbitrary) */
class="text-[#2abbfd] bg-[#2abbfd]"
/* SCSS */
$brand: #2abbfd;
/* SwiftUI */
Color(red: 0.165, green: 0.733, blue: 0.992)
/* Android */
Color.parseColor("#2abbfd")
/* Flutter */
Color(0xFF2ABBFD)
/* Python / OpenCV (BGR) */
(253, 187, 42)

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 #2abbfd · 9.62:1
Use #000000AAA at every size.
Aa
White text · 2.18:1
AA fail · AA large fail · AAA fail
Aa
Black text · 9.62:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #2abbfd as text scores 2.18:1 on white and 9.62:1 on black.

Accessibility — WCAG contrast

Aa
#2abbfd on white: 2.18:1
AA ✗ fail · AA-large · AAA
Aa
#2abbfd on black: 9.62:1
AA ✓ pass · AA-large · AAA
true color
protanopia · #9ABAFF
deuteranopia · #7FA7FC
tritanopia · #00CCD2

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #2abbfd 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.

#F1FAFD
#E3F4FC
#C1E9FB
#90DBFE
#58CAFD
#2abbfd
#02A7F2
#028BCA
#026FA2
#065274
#043349
Base = 500Lightest = 50 · #F1FAFDDarkest = 950 · #043349
:root {
  --brand-50: #F1FAFD;
  --brand-100: #E3F4FC;
  --brand-200: #C1E9FB;
  --brand-300: #90DBFE;
  --brand-400: #58CAFD;
  --brand-500: #2abbfd;
  --brand-600: #02A7F2;
  --brand-700: #028BCA;
  --brand-800: #026FA2;
  --brand-900: #065274;
  --brand-950: #043349;
  --brand: #2abbfd;
  --brand-ink: #000000;
}

Colors that work with #2abbfd

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#F4F8FA
Tinted page background
Border#C0DFED
Hairlines and dividers
Muted text#4B829B
Captions on the surface
Accent#FF3528
Second voice, not a rival
Dark variant#01577E
Hover, pressed, headers
Light variant#E6F7FF
Selected rows, tints
Dark surface#141F24
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 #2abbfd

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#FD6C2A
Analogous left#2AFDD6
Analogous right#2A51FD
Split-complement 1#FD2A51
Split-complement 2#FDD62A
Triadic 1#FD2ABB
Triadic 2#BBFD2A
Tetradic#D62AFD

RGB percentages

Red16.5%
Green73.3%
Blue99.2%

CMYK percentages

Cyan83.4%
Magenta26.1%
Yellow0.0%
Key (black)0.8%

Color previews

#2abbfd text on a black background

contrast 9.62:1

Card sample

#2abbfd text on a white background

contrast 2.18:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #2abbfd;
Background color
Panel with #2abbfd background
background-color: #2abbfd;
Text shadow — hex

Glowing headline

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

Soft neon halo

text-shadow: 0 0 14px rgba(42, 187, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(42, 187, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #2abbfd;
background: linear-gradient(135deg, #2abbfd, #2A2EFD);

Monochromatic scale

Palettes built from #2abbfd

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.

#2abbfd 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.

#2abbfd, answered

What color is #2abbfd?

#2abbfd is a balanced electric cyan, closest to Deep Sky Blue (ΔE2000 1.8). It sits at 199° on the hue wheel with 98% saturation and 58% lightness, which reads as cool.

What is the RGB value of #2abbfd?

rgb(42, 187, 253) — 42 red, 187 green and 253 blue out of 255, or 16.5% / 73.3% / 99.2% by channel.

Is #2abbfd a light or a dark color?

It is a mid-tone. Relative luminance is 0.4312 and perceived brightness is 66%, so black text on it reaches 9.62:1.

Should I use black or white text on #2abbfd?

Black. It scores 9.62:1 against #2abbfd, versus 2.18:1 for white — AAA at any size.

What is the complementary color of #2abbfd?

#FD6C2A sits directly opposite on the wheel. Softer options are the split-complements #FD2A51 and #FDD62A, which give the same contrast with far less vibration.

What colors go well with #2abbfd?

For interface work: #F4F8FA as the surface, #C0DFED for borders, #4B829B for secondary text, #FF3528 as an accent and #01577E for hover and pressed states. For a palette, the analogous pair #2AFDD6 and #2A51FD stays calm, while #FD6C2A is the loudest partner.

What is #2abbfd in CMYK for printing?

cmyk(83%, 26%, 0%, 1%). 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 #2abbfd warm or cool?

Cool — it scores 95 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #2AFDF2; nudged cooler, #28A5FF.

Work with #2abbfd in the Color Lab