#51A4E2#51A4E2

#51A4E2 is a light, vivid cyan. Relative luminance 0.338; OKLCH L 69.3% C 0.122 H 243.5°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#51A4E2
RGB	rgb(81, 164, 226)
HSL	hsl(206, 71%, 60%)
HSV	hsv(206, 64%, 89%)
CMYK	cmyk(64.2%, 27.4%, 0%, 11.4%)
CIE-LAB	lab(64.79, -6.34, -38.78)
CIE-LCH	lch(64.79, 39.29, 260.71°)
OKLab	oklab(69.32% -0.0545 -0.1092)
OKLCH	oklch(69.32% 0.122 243.5)
XYZ	xyz(30.3911, 33.7882, 76.8569)
Luminance	0.3379 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A4E2 #E28F51

analogous

#51E2D7 #51A4E2 #515BE2

triadic

#51A4E2 #E251A4 #A4E251

tetradic

#51A4E2 #D751E2 #E28F51 #5BE251

square

#51A4E2 #D751E2 #E28F51 #5BE251

split-complementary

#51A4E2 #E2515B #E2D751

monochromatic

#1A669E #2388D3 #51A4E2 #85BFEB #BADBF3

Accessibility & contrast

On white

2.71

#51A4E2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.76

#51A4E2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A4E2

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A4E2	#FFFFFF	#000000	##000000
##51A4E2	1.00	2.71	7.76	7.76
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.76	21.00	1.00	1.00
##000000	7.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#88A5E5

Deuteranopia (green-blind)

#7597E1

Tritanopia (blue-blind)

#00B3BA

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #51a4e2;
/* rgb */ color: rgb(81, 164, 226);
/* oklch */ color: oklch(69.3% 0.122 243.5);

Tailwind

colors: {
  custom: {
    50: '#8fbeeb',
    500: '#51a4e2',
    950: '#000000',
  },
}

SCSS

$custom: #51a4e2;
$custom-light: #8fbeeb;
$custom-dark: #000000;

JSON

{
  "hex": "#51a4e2",
  "rgb": {
    "r": 81,
    "g": 164,
    "b": 226
  },
  "hsl": {
    "h": 205.655,
    "s": 71.429,
    "l": 60.196
  },
  "oklch": {
    "l": 0.69322,
    "c": 0.12208,
    "h": 243.5
  },
  "luminance": 0.33791
}

Semantic roles & 50–950 ramp

primary

#51A4E2

secondary

#E3C3AC

accent

#6512D3

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #51A4E2

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

Preview Lab → · Contrast checker → · Palette generator →