#51A7E6#51A7E6

#51A7E6 is a light, vivid cyan. Relative luminance 0.351; OKLCH L 70.2% C 0.124 H 243.1°. Best body text is #000000 at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#51A7E6
RGB	rgb(81, 167, 230)
HSL	hsl(205, 75%, 61%)
HSV	hsv(205, 65%, 90%)
CMYK	cmyk(64.8%, 27.4%, 0%, 9.8%)
CIE-LAB	lab(65.82, -6.71, -39.37)
CIE-LCH	lch(65.82, 39.93, 260.32°)
OKLab	oklab(70.19% -0.0563 -0.1109)
OKLCH	oklch(70.19% 0.124 243.1)
XYZ	xyz(31.4896, 35.0967, 79.9624)
Luminance	0.3510 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A7E6 #E69051

analogous

#51E6DA #51A7E6 #515CE6

triadic

#51A7E6 #E651A7 #A7E651

tetradic

#51A7E6 #DA51E6 #E69051 #5CE651

square

#51A7E6 #DA51E6 #E69051 #5CE651

split-complementary

#51A7E6 #E6515C #E6DA51

monochromatic

#1869A5 #1F8BDA #51A7E6 #87C2EE #BCDDF5

Accessibility & contrast

On white

2.62

#51A7E6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.02

#51A7E6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A7E6

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A7E6	#FFFFFF	#000000	##000000
##51A7E6	1.00	2.62	8.02	8.02
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.02	21.00	1.00	1.00
##000000	8.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BA8E9

Deuteranopia (green-blind)

#7699E5

Tritanopia (blue-blind)

#00B6BD

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #51a7e6;
/* rgb */ color: rgb(81, 167, 230);
/* oklch */ color: oklch(70.2% 0.124 243.1);

Tailwind

colors: {
  custom: {
    50: '#90c1ee',
    500: '#51a7e6',
    950: '#000000',
  },
}

SCSS

$custom: #51a7e6;
$custom-light: #90c1ee;
$custom-dark: #000000;

JSON

{
  "hex": "#51a7e6",
  "rgb": {
    "r": 81,
    "g": 167,
    "b": 230
  },
  "hsl": {
    "h": 205.369,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.70193,
    "c": 0.1244,
    "h": 243.1
  },
  "luminance": 0.351
}

Semantic roles & 50–950 ramp

primary

#51A7E6

secondary

#E5C5AD

accent

#630ED7

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51A7E6

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

Preview Lab → · Contrast checker → · Palette generator →