#51A4CE#51A4CE

#51A4CE is a light, moderate cyan. Relative luminance 0.328; OKLCH L 68.4% C 0.102 H 233.0°. Best body text is #000000 at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#51A4CE
RGB	rgb(81, 164, 206)
HSL	hsl(200, 56%, 56%)
HSV	hsv(200, 61%, 81%)
CMYK	cmyk(60.7%, 20.4%, 0%, 19.2%)
CIE-LAB	lab(63.96, -12.74, -29.00)
CIE-LCH	lch(63.96, 31.68, 246.28°)
OKLab	oklab(68.39% -0.0611 -0.0811)
OKLCH	oklch(68.39% 0.102 233)
XYZ	xyz(27.8051, 32.7538, 63.2373)
Luminance	0.3276 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A4CE #CE7B51

analogous

#51CEBA #51A4CE #5166CE

triadic

#51A4CE #CE51A4 #A4CE51

tetradic

#51A4CE #BA51CE #CE7B51 #66CE51

square

#51A4CE #BA51CE #CE7B51 #66CE51

split-complementary

#51A4CE #CE5166 #CEBA51

monochromatic

#246180 #3286B0 #51A4CE #81BDDB #B1D6E9

Accessibility & contrast

On white

2.78

#51A4CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.55

#51A4CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A4CE

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A4CE	#FFFFFF	#000000	##000000
##51A4CE	1.00	2.78	7.55	7.55
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.55	21.00	1.00	1.00
##000000	7.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90A2D0

Deuteranopia (green-blind)

#7E95CD

Tritanopia (blue-blind)

#00AFB2

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #51a4ce;
/* rgb */ color: rgb(81, 164, 206);
/* oklch */ color: oklch(68.4% 0.102 233.0);

Tailwind

colors: {
  custom: {
    50: '#8dbfdd',
    500: '#51a4ce',
    950: '#000000',
  },
}

SCSS

$custom: #51a4ce;
$custom-light: #8dbfdd;
$custom-dark: #000000;

JSON

{
  "hex": "#51a4ce",
  "rgb": {
    "r": 81,
    "g": 164,
    "b": 206
  },
  "hsl": {
    "h": 200.16,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.68387,
    "c": 0.10156,
    "h": 233
  },
  "luminance": 0.32756
}

Semantic roles & 50–950 ramp

primary

#51A4CE

secondary

#D7B5A4

accent

#7B48DF

background

#F9FBFD

surface

#F1F7FB

border

#CBD0D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51A4CE

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

Preview Lab → · Contrast checker → · Palette generator →