#51A4CD#51A4CD

#51A4CD is a light, moderate cyan. Relative luminance 0.327; OKLCH L 68.3% C 0.101 H 232.3°. Best body text is #000000 at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#51A4CD
RGB	rgb(81, 164, 205)
HSL	hsl(200, 55%, 56%)
HSV	hsv(200, 60%, 80%)
CMYK	cmyk(60.5%, 20%, 0%, 19.6%)
CIE-LAB	lab(63.92, -13.05, -28.51)
CIE-LCH	lch(63.92, 31.35, 245.40°)
OKLab	oklab(68.34% -0.0615 -0.0797)
OKLCH	oklch(68.34% 0.101 232.3)
XYZ	xyz(27.6840, 32.7053, 62.5996)
Luminance	0.3271 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A4CD #CD7A51

analogous

#51CDB8 #51A4CD #5166CD

triadic

#51A4CD #CD51A4 #A4CD51

tetradic

#51A4CD #B851CD #CD7A51 #66CD51

square

#51A4CD #B851CD #CD7A51 #66CD51

split-complementary

#51A4CD #CD5166 #CDB851

monochromatic

#25617F #3285AF #51A4CD #81BDDB #B0D6E8

Accessibility & contrast

On white

2.78

#51A4CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.54

#51A4CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A4CD

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A4CD	#FFFFFF	#000000	##000000
##51A4CD	1.00	2.78	7.54	7.54
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.54	21.00	1.00	1.00
##000000	7.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90A2CF

Deuteranopia (green-blind)

#7F95CC

Tritanopia (blue-blind)

#00AFB2

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #51a4cd;
/* rgb */ color: rgb(81, 164, 205);
/* oklch */ color: oklch(68.3% 0.101 232.3);

Tailwind

colors: {
  custom: {
    50: '#8dbfdc',
    500: '#51a4cd',
    950: '#000000',
  },
}

SCSS

$custom: #51a4cd;
$custom-light: #8dbfdc;
$custom-dark: #000000;

JSON

{
  "hex": "#51a4cd",
  "rgb": {
    "r": 81,
    "g": 164,
    "b": 205
  },
  "hsl": {
    "h": 199.839,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.68342,
    "c": 0.10064,
    "h": 232.3
  },
  "luminance": 0.32708
}

Semantic roles & 50–950 ramp

primary

#51A4CD

secondary

#D7B4A3

accent

#7B49DF

background

#F9FBFD

surface

#F1F7FB

border

#CBD0D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51A4CD

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

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