#51A0CC#51A0CC

#51A0CC is a light, moderate cyan. Relative luminance 0.313; OKLCH L 67.4% C 0.101 H 235.4°. Best body text is #000000 at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#51A0CC
RGB	rgb(81, 160, 204)
HSL	hsl(201, 55%, 56%)
HSV	hsv(201, 60%, 80%)
CMYK	cmyk(60.3%, 21.6%, 0%, 20%)
CIE-LAB	lab(62.72, -11.18, -29.81)
CIE-LCH	lch(62.72, 31.84, 249.44°)
OKLab	oklab(67.37% -0.0575 -0.0834)
OKLCH	oklch(67.37% 0.101 235.4)
XYZ	xyz(26.8591, 31.2480, 61.7310)
Luminance	0.3125 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A0CC #CC7D51

analogous

#51CCBA #51A0CC #5162CC

triadic

#51A0CC #CC51A0 #A0CC51

tetradic

#51A0CC #BA51CC #CC7D51 #62CC51

square

#51A0CC #BA51CC #CC7D51 #62CC51

split-complementary

#51A0CC #CC5162 #CCBA51

monochromatic

#255E7E #3381AD #51A0CC #80BADA #B0D4E8

Accessibility & contrast

On white

2.90

#51A0CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.25

#51A0CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A0CC

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A0CC	#FFFFFF	#000000	##000000
##51A0CC	1.00	2.90	7.25	7.25
#FFFFFF	2.90	1.00	21.00	21.00
#000000	7.25	21.00	1.00	1.00
##000000	7.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B9FCE

Deuteranopia (green-blind)

#7A92CB

Tritanopia (blue-blind)

#00ABAF

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #51a0cc;
/* rgb */ color: rgb(81, 160, 204);
/* oklch */ color: oklch(67.4% 0.101 235.4);

Tailwind

colors: {
  custom: {
    50: '#8cbcdb',
    500: '#51a0cc',
    950: '#000000',
  },
}

SCSS

$custom: #51a0cc;
$custom-light: #8cbcdb;
$custom-dark: #000000;

JSON

{
  "hex": "#51a0cc",
  "rgb": {
    "r": 81,
    "g": 160,
    "b": 204
  },
  "hsl": {
    "h": 201.463,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.67371,
    "c": 0.10133,
    "h": 235.4
  },
  "luminance": 0.31251
}

Semantic roles & 50–950 ramp

primary

#51A0CC

secondary

#D6B5A3

accent

#7F4ADE

background

#F9FBFD

surface

#F1F6FB

border

#CBD0D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51A0CC

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

Preview Lab → · Contrast checker → · Palette generator →