#51A8D6#51A8D6

#51A8D6 is a light, moderate cyan. Relative luminance 0.346; OKLCH L 69.7% C 0.107 H 234.3°. Best body text is #000000 at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#51A8D6
RGB	rgb(81, 168, 214)
HSL	hsl(201, 62%, 58%)
HSV	hsv(201, 62%, 84%)
CMYK	cmyk(62.1%, 21.5%, 0%, 16.1%)
CIE-LAB	lab(65.44, -12.40, -31.15)
CIE-LCH	lch(65.44, 33.52, 248.29°)
OKLab	oklab(69.67% -0.0626 -0.0872)
OKLCH	oklch(69.67% 0.107 234.3)
XYZ	xyz(29.5289, 34.6067, 68.7289)
Luminance	0.3461 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A8D6 #D67F51

analogous

#51D6C1 #51A8D6 #5165D6

triadic

#51A8D6 #D651A8 #A8D651

tetradic

#51A8D6 #C151D6 #D67F51 #65D651

square

#51A8D6 #C151D6 #D67F51 #65D651

split-complementary

#51A8D6 #D65165 #D6C151

monochromatic

#21678C #2D8BBD #51A8D6 #83C1E2 #B4DAED

Accessibility & contrast

On white

2.65

#51A8D6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.92

#51A8D6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A8D6

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A8D6	#FFFFFF	#000000	##000000
##51A8D6	1.00	2.65	7.92	7.92
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.92	21.00	1.00	1.00
##000000	7.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92A7D8

Deuteranopia (green-blind)

#7F99D5

Tritanopia (blue-blind)

#00B4B7

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #51a8d6;
/* rgb */ color: rgb(81, 168, 214);
/* oklch */ color: oklch(69.7% 0.107 234.3);

Tailwind

colors: {
  custom: {
    50: '#8ec1e2',
    500: '#51a8d6',
    950: '#000000',
  },
}

SCSS

$custom: #51a8d6;
$custom-light: #8ec1e2;
$custom-dark: #000000;

JSON

{
  "hex": "#51a8d6",
  "rgb": {
    "r": 81,
    "g": 168,
    "b": 214
  },
  "hsl": {
    "h": 200.752,
    "s": 61.86,
    "l": 57.843
  },
  "oklch": {
    "l": 0.69669,
    "c": 0.10735,
    "h": 234.3
  },
  "luminance": 0.3461
}

Semantic roles & 50–950 ramp

primary

#51A8D6

secondary

#DCB9A7

accent

#7B43E5

background

#F9FBFD

surface

#F2F7FB

border

#CCD0D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51A8D6

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

Preview Lab → · Contrast checker → · Palette generator →