#51A2DB#51A2DB

#51A2DB is a light, moderate cyan. Relative luminance 0.327; OKLCH L 68.5% C 0.116 H 241.8°. Best body text is #000000 at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#51A2DB
RGB	rgb(81, 162, 219)
HSL	hsl(205, 66%, 59%)
HSV	hsv(205, 63%, 86%)
CMYK	cmyk(63%, 26%, 0%, 14.1%)
CIE-LAB	lab(63.92, -7.50, -36.28)
CIE-LCH	lch(63.92, 37.04, 258.32°)
OKLab	oklab(68.53% -0.0546 -0.102)
OKLCH	oklch(68.53% 0.116 241.8)
XYZ	xyz(29.0950, 32.7016, 71.7828)
Luminance	0.3270 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A2DB #DB8A51

analogous

#51DBCF #51A2DB #515DDB

triadic

#51A2DB #DB51A2 #A2DB51

tetradic

#51A2DB #CF51DB #DB8A51 #5DDB51

square

#51A2DB #CF51DB #DB8A51 #5DDB51

split-complementary

#51A2DB #DB515D #DBCF51

monochromatic

#1E6393 #2985C6 #51A2DB #84BDE5 #B6D8F0

Accessibility & contrast

On white

2.78

#51A2DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.54

#51A2DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A2DB

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A2DB	#FFFFFF	#000000	##000000
##51A2DB	1.00	2.78	7.54	7.54
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.54	21.00	1.00	1.00
##000000	7.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#88A3DE

Deuteranopia (green-blind)

#7695DA

Tritanopia (blue-blind)

#00B0B6

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #51a2db;
/* rgb */ color: rgb(81, 162, 219);
/* oklch */ color: oklch(68.5% 0.116 241.8);

Tailwind

colors: {
  custom: {
    50: '#8ebde6',
    500: '#51a2db',
    950: '#000000',
  },
}

SCSS

$custom: #51a2db;
$custom-light: #8ebde6;
$custom-dark: #000000;

JSON

{
  "hex": "#51a2db",
  "rgb": {
    "r": 81,
    "g": 162,
    "b": 219
  },
  "hsl": {
    "h": 204.783,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.6853,
    "c": 0.11574,
    "h": 241.8
  },
  "luminance": 0.32704
}

Semantic roles & 50–950 ramp

primary

#51A2DB

secondary

#DFBFA9

accent

#853FE9

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0D1216

muted

#7E8184

Preview Lab

Preview with #51A2DB

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

Preview Lab → · Contrast checker → · Palette generator →