#51A2BB#51A2BB

#51A2BB is a light, moderate cyan. Relative luminance 0.312; OKLCH L 67.1% C 0.087 H 220.6°. Best body text is #000000 at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#51A2BB
RGB	rgb(81, 162, 187)
HSL	hsl(194, 44%, 53%)
HSV	hsv(194, 57%, 73%)
CMYK	cmyk(56.7%, 13.4%, 0%, 26.7%)
CIE-LAB	lab(62.66, -17.48, -20.41)
CIE-LCH	lch(62.66, 26.87, 229.41°)
OKLab	oklab(67.11% -0.066 -0.0566)
OKLCH	oklch(67.11% 0.087 220.6)
XYZ	xyz(25.2798, 31.1755, 51.6893)
Luminance	0.3118 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A2BB #BB6A51

analogous

#51BB9F #51A2BB #516DBB

triadic

#51A2BB #BB51A2 #A2BB51

tetradic

#51A2BB #9F51BB #BB6A51 #6DBB51

square

#51A2BB #9F51BB #BB6A51 #6DBB51

split-complementary

#51A2BB #BB516D #BB9F51

monochromatic

#295A69 #3A7F95 #51A2BB #7DBACC #A9D1DD

Accessibility & contrast

On white

2.90

#51A2BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.24

#51A2BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A2BB

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A2BB	#FFFFFF	#000000	##000000
##51A2BB	1.00	2.90	7.24	7.24
#FFFFFF	2.90	1.00	21.00	21.00
#000000	7.24	21.00	1.00	1.00
##000000	7.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#939EBC

Deuteranopia (green-blind)

#8392BB

Tritanopia (blue-blind)

#00AAAA

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #51a2bb;
/* rgb */ color: rgb(81, 162, 187);
/* oklch */ color: oklch(67.1% 0.087 220.6);

Tailwind

colors: {
  custom: {
    50: '#8bbdcf',
    500: '#51a2bb',
    950: '#000000',
  },
}

SCSS

$custom: #51a2bb;
$custom-light: #8bbdcf;
$custom-dark: #000000;

JSON

{
  "hex": "#51a2bb",
  "rgb": {
    "r": 81,
    "g": 162,
    "b": 187
  },
  "hsl": {
    "h": 194.151,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.67108,
    "c": 0.08699,
    "h": 220.6
  },
  "luminance": 0.31178
}

Semantic roles & 50–950 ramp

primary

#51A2BB

secondary

#CBA89D

accent

#7254D4

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0D1213

muted

#7D8182

Preview Lab

Preview with #51A2BB

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

Preview Lab → · Contrast checker → · Palette generator →