#51A2E1#51A2E1

#51A2E1 is a light, vivid cyan. Relative luminance 0.330; OKLCH L 68.8% C 0.122 H 244.5°. Best body text is #000000 at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#51A2E1
RGB	rgb(81, 162, 225)
HSL	hsl(206, 71%, 60%)
HSV	hsv(206, 64%, 88%)
CMYK	cmyk(64%, 28%, 0%, 11.8%)
CIE-LAB	lab(64.18, -5.55, -39.18)
CIE-LCH	lch(64.18, 39.58, 261.94°)
OKLab	oklab(68.82% -0.0528 -0.1104)
OKLCH	oklch(68.82% 0.122 244.5)
XYZ	xyz(29.8992, 33.0232, 76.0180)
Luminance	0.3303 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A2E1 #E19051

analogous

#51E1D8 #51A2E1 #515AE1

triadic

#51A2E1 #E151A2 #A2E151

tetradic

#51A2E1 #D851E1 #E19051 #5AE151

square

#51A2E1 #D851E1 #E19051 #5AE151

split-complementary

#51A2E1 #E1515A #E1D851

monochromatic

#1B649D #2485D1 #51A2E1 #85BEEA #B9DAF3

Accessibility & contrast

On white

2.76

#51A2E1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.61

#51A2E1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A2E1

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A2E1	#FFFFFF	#000000	##000000
##51A2E1	1.00	2.76	7.61	7.61
#FFFFFF	2.76	1.00	21.00	21.00
#000000	7.61	21.00	1.00	1.00
##000000	7.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86A3E4

Deuteranopia (green-blind)

#7295E0

Tritanopia (blue-blind)

#00B1B8

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #51a2e1;
/* rgb */ color: rgb(81, 162, 225);
/* oklch */ color: oklch(68.8% 0.122 244.5);

Tailwind

colors: {
  custom: {
    50: '#8fbdea',
    500: '#51a2e1',
    950: '#000000',
  },
}

SCSS

$custom: #51a2e1;
$custom-light: #8fbdea;
$custom-dark: #000000;

JSON

{
  "hex": "#51a2e1",
  "rgb": {
    "r": 81,
    "g": 162,
    "b": 225
  },
  "hsl": {
    "h": 206.25,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.68822,
    "c": 0.1224,
    "h": 244.5
  },
  "luminance": 0.33026
}

Semantic roles & 50–950 ramp

primary

#51A2E1

secondary

#E3C3AB

accent

#893AED

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51A2E1

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

Preview Lab → · Contrast checker → · Palette generator →