#57B0E7#57B0E7

#57B0E7 is a light, moderate cyan. Relative luminance 0.388; OKLCH L 72.5% C 0.117 H 238.4°. Best body text is #000000 at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#57B0E7
RGB	rgb(87, 176, 231)
HSL	hsl(203, 75%, 62%)
HSV	hsv(203, 62%, 91%)
CMYK	cmyk(62.3%, 23.8%, 0%, 9.4%)
CIE-LAB	lab(68.64, -10.32, -35.52)
CIE-LCH	lch(68.64, 36.98, 253.80°)
OKLab	oklab(72.49% -0.0612 -0.0997)
OKLCH	oklch(72.49% 0.117 238.4)
XYZ	xyz(33.8741, 38.8430, 81.2981)
Luminance	0.3885 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B0E7 #E78E57

analogous

#57E7D6 #57B0E7 #5768E7

triadic

#57B0E7 #E757B0 #B0E757

tetradic

#57B0E7 #D657E7 #E78E57 #68E757

square

#57B0E7 #D657E7 #E78E57 #68E757

split-complementary

#57B0E7 #E75768 #E7D657

monochromatic

#1873AB #2197DF #57B0E7 #8DC9EF #C2E2F6

Accessibility & contrast

On white

2.39

#57B0E7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.77

#57B0E7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B0E7

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B0E7	#FFFFFF	#000000	##000000
##57B0E7	1.00	2.39	8.77	8.77
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.77	21.00	1.00	1.00
##000000	8.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97B0EA

Deuteranopia (green-blind)

#83A1E6

Tritanopia (blue-blind)

#00BEC3

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #57b0e7;
/* rgb */ color: rgb(87, 176, 231);
/* oklch */ color: oklch(72.5% 0.117 238.4);

Tailwind

colors: {
  custom: {
    50: '#93c7ee',
    500: '#57b0e7',
    950: '#000000',
  },
}

SCSS

$custom: #57b0e7;
$custom-light: #93c7ee;
$custom-dark: #000000;

JSON

{
  "hex": "#57b0e7",
  "rgb": {
    "r": 87,
    "g": 176,
    "b": 231
  },
  "hsl": {
    "h": 202.917,
    "s": 75,
    "l": 62.353
  },
  "oklch": {
    "l": 0.72493,
    "c": 0.11698,
    "h": 238.4
  },
  "luminance": 0.38846
}

Semantic roles & 50–950 ramp

primary

#57B0E7

secondary

#E7C7B3

accent

#5B0ED7

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #57B0E7

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

Preview Lab → · Contrast checker → · Palette generator →