#51AAEA#51AAEA

#51AAEA is a light, vivid cyan. Relative luminance 0.364; OKLCH L 71.1% C 0.127 H 242.7°. Best body text is #000000 at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#51AAEA
RGB	rgb(81, 170, 234)
HSL	hsl(205, 78%, 62%)
HSV	hsv(205, 65%, 92%)
CMYK	cmyk(65.4%, 27.4%, 0%, 8.2%)
CIE-LAB	lab(66.85, -7.07, -39.95)
CIE-LCH	lch(66.85, 40.58, 259.96°)
OKLab	oklab(71.06% -0.0581 -0.1126)
OKLCH	oklch(71.06% 0.127 242.7)
XYZ	xyz(32.6137, 36.4359, 83.1400)
Luminance	0.3644 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AAEA #EA9151

analogous

#51EADE #51AAEA #515EEA

triadic

#51AAEA #EA51AA #AAEA51

tetradic

#51AAEA #DE51EA #EA9151 #5EEA51

square

#51AAEA #DE51EA #EA9151 #5EEA51

split-complementary

#51AAEA #EA515E #EADE51

monochromatic

#156DAC #1B8FE2 #51AAEA #88C5F1 #BEDFF7

Accessibility & contrast

On white

2.53

#51AAEA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.29

#51AAEA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AAEA

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AAEA	#FFFFFF	#000000	##000000
##51AAEA	1.00	2.53	8.29	8.29
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.29	21.00	1.00	1.00
##000000	8.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DABED

Deuteranopia (green-blind)

#789CE9

Tritanopia (blue-blind)

#00BAC0

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51aaea;
/* rgb */ color: rgb(81, 170, 234);
/* oklch */ color: oklch(71.1% 0.127 242.7);

Tailwind

colors: {
  custom: {
    50: '#91c3f1',
    500: '#51aaea',
    950: '#000000',
  },
}

SCSS

$custom: #51aaea;
$custom-light: #91c3f1;
$custom-dark: #000000;

JSON

{
  "hex": "#51aaea",
  "rgb": {
    "r": 81,
    "g": 170,
    "b": 234
  },
  "hsl": {
    "h": 205.098,
    "s": 78.462,
    "l": 61.765
  },
  "oklch": {
    "l": 0.71063,
    "c": 0.12671,
    "h": 242.7
  },
  "luminance": 0.36439
}

Semantic roles & 50–950 ramp

primary

#51AAEA

secondary

#E8C7AF

accent

#620BDB

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51AAEA

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →