#51A0DD#51A0DD

#51A0DD is a light, moderate cyan. Relative luminance 0.321; OKLCH L 68.2% C 0.119 H 244.2°. Best body text is #000000 at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#51A0DD
RGB	rgb(81, 160, 221)
HSL	hsl(206, 67%, 59%)
HSV	hsv(206, 63%, 87%)
CMYK	cmyk(63.3%, 27.6%, 0%, 13.3%)
CIE-LAB	lab(63.43, -5.73, -38.14)
CIE-LCH	lch(63.43, 38.57, 261.45°)
OKLab	oklab(68.17% -0.0519 -0.1074)
OKLCH	oklch(68.17% 0.119 244.2)
XYZ	xyz(29.0104, 32.1085, 73.0613)
Luminance	0.3211 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A0DD #DD8E51

analogous

#51DDD4 #51A0DD #515ADD

triadic

#51A0DD #DD51A0 #A0DD51

tetradic

#51A0DD #D451DD #DD8E51 #5ADD51

square

#51A0DD #D451DD #DD8E51 #5ADD51

split-complementary

#51A0DD #DD515A #DDD451

monochromatic

#1D6296 #2783C9 #51A0DD #84BCE7 #B7D8F1

Accessibility & contrast

On white

2.83

#51A0DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.42

#51A0DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A0DD

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A0DD	#FFFFFF	#000000	##000000
##51A0DD	1.00	2.83	7.42	7.42
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.42	21.00	1.00	1.00
##000000	7.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85A1E0

Deuteranopia (green-blind)

#7293DC

Tritanopia (blue-blind)

#00AFB5

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #51a0dd;
/* rgb */ color: rgb(81, 160, 221);
/* oklch */ color: oklch(68.2% 0.119 244.2);

Tailwind

colors: {
  custom: {
    50: '#8fbbe8',
    500: '#51a0dd',
    950: '#000000',
  },
}

SCSS

$custom: #51a0dd;
$custom-light: #8fbbe8;
$custom-dark: #000000;

JSON

{
  "hex": "#51a0dd",
  "rgb": {
    "r": 81,
    "g": 160,
    "b": 221
  },
  "hsl": {
    "h": 206.143,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.68174,
    "c": 0.11934,
    "h": 244.2
  },
  "luminance": 0.32111
}

Semantic roles & 50–950 ramp

primary

#51A0DD

secondary

#E0C1AA

accent

#893EEA

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #51A0DD

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

Preview Lab → · Contrast checker → · Palette generator →