#51A4DE#51A4DE

#51A4DE is a light, moderate cyan. Relative luminance 0.336; OKLCH L 69.1% C 0.118 H 241.7°. Best body text is #000000 at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#51A4DE
RGB	rgb(81, 164, 222)
HSL	hsl(205, 68%, 59%)
HSV	hsv(205, 64%, 87%)
CMYK	cmyk(63.5%, 26.1%, 0%, 12.9%)
CIE-LAB	lab(64.62, -7.64, -36.84)
CIE-LCH	lch(64.62, 37.62, 258.28°)
OKLab	oklab(69.13% -0.0558 -0.1036)
OKLCH	oklch(69.13% 0.118 241.7)
XYZ	xyz(29.8486, 33.5712, 73.9999)
Luminance	0.3357 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A4DE #DE8B51

analogous

#51DED2 #51A4DE #515EDE

triadic

#51A4DE #DE51A4 #A4DE51

tetradic

#51A4DE #D251DE #DE8B51 #5EDE51

square

#51A4DE #D251DE #DE8B51 #5EDE51

split-complementary

#51A4DE #DE515E #DED251

monochromatic

#1D6598 #2788CB #51A4DE #84BFE8 #B8DAF2

Accessibility & contrast

On white

2.72

#51A4DE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.71

#51A4DE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A4DE

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A4DE	#FFFFFF	#000000	##000000
##51A4DE	1.00	2.72	7.71	7.71
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.71	21.00	1.00	1.00
##000000	7.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8AA5E1

Deuteranopia (green-blind)

#7797DD

Tritanopia (blue-blind)

#00B2B8

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #51a4de;
/* rgb */ color: rgb(81, 164, 222);
/* oklch */ color: oklch(69.1% 0.118 241.7);

Tailwind

colors: {
  custom: {
    50: '#8fbee8',
    500: '#51a4de',
    950: '#000000',
  },
}

SCSS

$custom: #51a4de;
$custom-light: #8fbee8;
$custom-dark: #000000;

JSON

{
  "hex": "#51a4de",
  "rgb": {
    "r": 81,
    "g": 164,
    "b": 222
  },
  "hsl": {
    "h": 204.681,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.69128,
    "c": 0.11769,
    "h": 241.7
  },
  "luminance": 0.33574
}

Semantic roles & 50–950 ramp

primary

#51A4DE

secondary

#E1C1AA

accent

#843DEB

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51A4DE

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

Preview Lab → · Contrast checker → · Palette generator →