#51A2DD#51A2DD

#51A2DD is a light, moderate cyan. Relative luminance 0.328; OKLCH L 68.6% C 0.118 H 242.7°. Best body text is #000000 at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#51A2DD
RGB	rgb(81, 162, 221)
HSL	hsl(205, 67%, 59%)
HSV	hsv(205, 63%, 87%)
CMYK	cmyk(63.3%, 26.7%, 0%, 13.3%)
CIE-LAB	lab(64.00, -6.85, -37.25)
CIE-LCH	lch(64.00, 37.87, 259.57°)
OKLab	oklab(68.63% -0.054 -0.1048)
OKLCH	oklch(68.63% 0.118 242.7)
XYZ	xyz(29.3599, 32.8075, 73.1778)
Luminance	0.3281 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A2DD #DD8C51

analogous

#51DDD2 #51A2DD #515CDD

triadic

#51A2DD #DD51A2 #A2DD51

tetradic

#51A2DD #D251DD #DD8C51 #5CDD51

square

#51A2DD #D251DD #DD8C51 #5CDD51

split-complementary

#51A2DD #DD515C #DDD251

monochromatic

#1D6396 #2785C9 #51A2DD #84BDE7 #B7D9F1

Accessibility & contrast

On white

2.78

#51A2DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.56

#51A2DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A2DD

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A2DD	#FFFFFF	#000000	##000000
##51A2DD	1.00	2.78	7.56	7.56
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.56	21.00	1.00	1.00
##000000	7.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#88A3E0

Deuteranopia (green-blind)

#7595DC

Tritanopia (blue-blind)

#00B0B6

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #51a2dd;
/* rgb */ color: rgb(81, 162, 221);
/* oklch */ color: oklch(68.6% 0.118 242.7);

Tailwind

colors: {
  custom: {
    50: '#8fbde8',
    500: '#51a2dd',
    950: '#000000',
  },
}

SCSS

$custom: #51a2dd;
$custom-light: #8fbde8;
$custom-dark: #000000;

JSON

{
  "hex": "#51a2dd",
  "rgb": {
    "r": 81,
    "g": 162,
    "b": 221
  },
  "hsl": {
    "h": 205.286,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.68626,
    "c": 0.11793,
    "h": 242.7
  },
  "luminance": 0.3281
}

Semantic roles & 50–950 ramp

primary

#51A2DD

secondary

#E0C1AA

accent

#863EEA

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0D1216

muted

#7E8184

Preview Lab

Preview with #51A2DD

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

Preview Lab → · Contrast checker → · Palette generator →