#51A3C8#51A3C8

#51A3C8 is a light, moderate cyan. Relative luminance 0.321; OKLCH L 67.9% C 0.097 H 229.9°. Best body text is #000000 at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#51A3C8
RGB	rgb(81, 163, 200)
HSL	hsl(199, 52%, 55%)
HSV	hsv(199, 60%, 78%)
CMYK	cmyk(59.5%, 18.5%, 0%, 21.6%)
CIE-LAB	lab(63.43, -14.07, -26.47)
CIE-LCH	lch(63.43, 29.98, 242.02°)
OKLab	oklab(67.89% -0.0622 -0.0739)
OKLCH	oklch(67.89% 0.097 229.9)
XYZ	xyz(26.9118, 32.1113, 59.4122)
Luminance	0.3211 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A3C8 #C87651

analogous

#51C8B1 #51A3C8 #5168C8

triadic

#51A3C8 #C851A3 #A3C851

tetradic

#51A3C8 #B151C8 #C87651 #68C851

square

#51A3C8 #B151C8 #C87651 #68C851

split-complementary

#51A3C8 #C85168 #C8B151

monochromatic

#265F79 #3583A7 #51A3C8 #80BCD7 #AED4E5

Accessibility & contrast

On white

2.83

#51A3C8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.42

#51A3C8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A3C8

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A3C8	#FFFFFF	#000000	##000000
##51A3C8	1.00	2.83	7.42	7.42
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.42	21.00	1.00	1.00
##000000	7.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#90A1CA

Deuteranopia (green-blind)

#7F94C8

Tritanopia (blue-blind)

#00ADAF

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #51a3c8;
/* rgb */ color: rgb(81, 163, 200);
/* oklch */ color: oklch(67.9% 0.097 229.9);

Tailwind

colors: {
  custom: {
    50: '#8cbed8',
    500: '#51a3c8',
    950: '#000000',
  },
}

SCSS

$custom: #51a3c8;
$custom-light: #8cbed8;
$custom-dark: #000000;

JSON

{
  "hex": "#51a3c8",
  "rgb": {
    "r": 81,
    "g": 163,
    "b": 200
  },
  "hsl": {
    "h": 198.655,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.6789,
    "c": 0.09658,
    "h": 229.9
  },
  "luminance": 0.32114
}

Semantic roles & 50–950 ramp

primary

#51A3C8

secondary

#D3B1A1

accent

#794CDB

background

#F9FBFD

surface

#F1F6FA

border

#CBD0D3

text

#0D1214

muted

#7E8183

Preview Lab

Preview with #51A3C8

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

Preview Lab → · Contrast checker → · Palette generator →