#51A3BE#51A3BE

#51A3BE is a light, moderate cyan. Relative luminance 0.317; OKLCH L 67.5% C 0.089 H 222.1°. Best body text is #000000 at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#51A3BE
RGB	rgb(81, 163, 190)
HSL	hsl(195, 46%, 53%)
HSV	hsv(195, 57%, 75%)
CMYK	cmyk(57.4%, 14.2%, 0%, 25.5%)
CIE-LAB	lab(63.06, -17.11, -21.47)
CIE-LCH	lch(63.06, 27.45, 231.44°)
OKLab	oklab(67.47% -0.066 -0.0596)
OKLCH	oklch(67.47% 0.089 222.1)
XYZ	xyz(25.7812, 31.6590, 53.4574)
Luminance	0.3166 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A3BE #BE6C51

analogous

#51BEA2 #51A3BE #516CBE

triadic

#51A3BE #BE51A3 #A3BE51

tetradic

#51A3BE #A251BE #BE6C51 #6CBE51

square

#51A3BE #A251BE #BE6C51 #6CBE51

split-complementary

#51A3BE #BE516C #BEA251

monochromatic

#285B6C #398199 #51A3BE #7EBBCF #AAD2DF

Accessibility & contrast

On white

2.86

#51A3BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.33

#51A3BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A3BE

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A3BE	#FFFFFF	#000000	##000000
##51A3BE	1.00	2.86	7.33	7.33
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.33	21.00	1.00	1.00
##000000	7.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#939FBF

Deuteranopia (green-blind)

#8393BE

Tritanopia (blue-blind)

#00ACAC

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #51a3be;
/* rgb */ color: rgb(81, 163, 190);
/* oklch */ color: oklch(67.5% 0.089 222.1);

Tailwind

colors: {
  custom: {
    50: '#8bbed1',
    500: '#51a3be',
    950: '#000000',
  },
}

SCSS

$custom: #51a3be;
$custom-light: #8bbed1;
$custom-dark: #000000;

JSON

{
  "hex": "#51a3be",
  "rgb": {
    "r": 81,
    "g": 163,
    "b": 190
  },
  "hsl": {
    "h": 194.862,
    "s": 45.607,
    "l": 53.137
  },
  "oklch": {
    "l": 0.67467,
    "c": 0.08893,
    "h": 222.1
  },
  "luminance": 0.31661
}

Semantic roles & 50–950 ramp

primary

#51A3BE

secondary

#CDAA9E

accent

#7353D5

background

#F9FBFC

surface

#F1F6F9

border

#CBD0D2

text

#0D1214

muted

#7E8182

Preview Lab

Preview with #51A3BE

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

Preview Lab → · Contrast checker → · Palette generator →