#51A3E2#51A3E2

#51A3E2 is a light, vivid cyan. Relative luminance 0.334; OKLCH L 69.1% C 0.123 H 244.2°. Best body text is #000000 at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#51A3E2
RGB	rgb(81, 163, 226)
HSL	hsl(206, 71%, 60%)
HSV	hsv(206, 64%, 89%)
CMYK	cmyk(64.2%, 27.9%, 0%, 11.4%)
CIE-LAB	lab(64.51, -5.79, -39.22)
CIE-LCH	lch(64.51, 39.65, 261.61°)
OKLab	oklab(69.1% -0.0535 -0.1105)
OKLCH	oklch(69.1% 0.123 244.2)
XYZ	xyz(30.2128, 33.4317, 76.7975)
Luminance	0.3343 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A3E2 #E29051

analogous

#51E2D9 #51A3E2 #515AE2

triadic

#51A3E2 #E251A3 #A3E251

tetradic

#51A3E2 #D951E2 #E29051 #5AE251

square

#51A3E2 #D951E2 #E29051 #5AE251

split-complementary

#51A3E2 #E2515A #E2D951

monochromatic

#1A659E #2386D3 #51A3E2 #85BFEB #BADAF3

Accessibility & contrast

On white

2.73

#51A3E2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.69

#51A3E2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A3E2

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A3E2	#FFFFFF	#000000	##000000
##51A3E2	1.00	2.73	7.69	7.69
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.69	21.00	1.00	1.00
##000000	7.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#87A4E5

Deuteranopia (green-blind)

#7396E1

Tritanopia (blue-blind)

#00B2B9

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #51a3e2;
/* rgb */ color: rgb(81, 163, 226);
/* oklch */ color: oklch(69.1% 0.123 244.2);

Tailwind

colors: {
  custom: {
    50: '#8fbeeb',
    500: '#51a3e2',
    950: '#000000',
  },
}

SCSS

$custom: #51a3e2;
$custom-light: #8fbeeb;
$custom-dark: #000000;

JSON

{
  "hex": "#51a3e2",
  "rgb": {
    "r": 81,
    "g": 163,
    "b": 226
  },
  "hsl": {
    "h": 206.069,
    "s": 71.429,
    "l": 60.196
  },
  "oklch": {
    "l": 0.69097,
    "c": 0.1228,
    "h": 244.2
  },
  "luminance": 0.33435
}

Semantic roles & 50–950 ramp

primary

#51A3E2

secondary

#E3C4AC

accent

#6612D3

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51A3E2

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

Preview Lab → · Contrast checker → · Palette generator →