#51A5CE#51A5CE

#51A5CE is a light, moderate cyan. Relative luminance 0.331; OKLCH L 68.6% C 0.101 H 232.1°. Best body text is #000000 at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#51A5CE
RGB	rgb(81, 165, 206)
HSL	hsl(200, 56%, 56%)
HSV	hsv(200, 61%, 81%)
CMYK	cmyk(60.7%, 19.9%, 0%, 19.2%)
CIE-LAB	lab(64.25, -13.28, -28.55)
CIE-LCH	lch(64.25, 31.49, 245.05°)
OKLab	oklab(68.62% -0.0622 -0.0798)
OKLCH	oklch(68.62% 0.101 232.1)
XYZ	xyz(27.9848, 33.1131, 63.2972)
Luminance	0.3312 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A5CE #CE7A51

analogous

#51CEB9 #51A5CE #5167CE

triadic

#51A5CE #CE51A5 #A5CE51

tetradic

#51A5CE #B951CE #CE7A51 #67CE51

square

#51A5CE #B951CE #CE7A51 #67CE51

split-complementary

#51A5CE #CE5167 #CEB951

monochromatic

#246280 #3287B0 #51A5CE #81BEDB #B1D6E9

Accessibility & contrast

On white

2.75

#51A5CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.62

#51A5CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A5CE

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A5CE	#FFFFFF	#000000	##000000
##51A5CE	1.00	2.75	7.62	7.62
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.62	21.00	1.00	1.00
##000000	7.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91A3D0

Deuteranopia (green-blind)

#7F96CD

Tritanopia (blue-blind)

#00B0B3

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #51a5ce;
/* rgb */ color: rgb(81, 165, 206);
/* oklch */ color: oklch(68.6% 0.101 232.1);

Tailwind

colors: {
  custom: {
    50: '#8dbfdd',
    500: '#51a5ce',
    950: '#000000',
  },
}

SCSS

$custom: #51a5ce;
$custom-light: #8dbfdd;
$custom-dark: #000000;

JSON

{
  "hex": "#51a5ce",
  "rgb": {
    "r": 81,
    "g": 165,
    "b": 206
  },
  "hsl": {
    "h": 199.68,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.68618,
    "c": 0.10118,
    "h": 232.1
  },
  "luminance": 0.33116
}

Semantic roles & 50–950 ramp

primary

#51A5CE

secondary

#D7B5A4

accent

#7A48DF

background

#F9FBFD

surface

#F1F7FB

border

#CBD0D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51A5CE

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

Preview Lab → · Contrast checker → · Palette generator →