#57A1EB#57A1EB

#57A1EB is a light, vivid cyan. Relative luminance 0.335; OKLCH L 69.3% C 0.132 H 250.3°. Best body text is #000000 at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#57A1EB
RGB	rgb(87, 161, 235)
HSL	hsl(210, 79%, 63%)
HSV	hsv(210, 63%, 92%)
CMYK	cmyk(63%, 31.5%, 0%, 7.8%)
CIE-LAB	lab(64.57, -0.68, -44.06)
CIE-LCH	lch(64.57, 44.06, 269.12°)
OKLab	oklab(69.34% -0.0446 -0.1245)
OKLCH	oklch(69.34% 0.132 250.3)
XYZ	xyz(31.6652, 33.5110, 83.3807)
Luminance	0.3351 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57A1EB #EBA157

analogous

#57EBEB #57A1EB #5757EB

triadic

#57A1EB #EB57A1 #A1EB57

tetradic

#57A1EB #EB57EB #EBA157 #57EB57

square

#57A1EB #EB57EB #EBA157 #57EB57

split-complementary

#57A1EB #EB5757 #EBEB57

monochromatic

#1564B2 #2082E4 #57A1EB #8EC0F2 #C4DEF8

Accessibility & contrast

On white

2.73

#57A1EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.70

#57A1EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57A1EB

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57A1EB	#FFFFFF	#000000	##000000
##57A1EB	1.00	2.73	7.70	7.70
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.70	21.00	1.00	1.00
##000000	7.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#81A4EE

Deuteranopia (green-blind)

#6D96EA

Tritanopia (blue-blind)

#00B2BB

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #57a1eb;
/* rgb */ color: rgb(87, 161, 235);
/* oklch */ color: oklch(69.3% 0.132 250.3);

Tailwind

colors: {
  custom: {
    50: '#93bcf2',
    500: '#57a1eb',
    950: '#000000',
  },
}

SCSS

$custom: #57a1eb;
$custom-light: #93bcf2;
$custom-dark: #000000;

JSON

{
  "hex": "#57a1eb",
  "rgb": {
    "r": 87,
    "g": 161,
    "b": 235
  },
  "hsl": {
    "h": 210,
    "s": 78.723,
    "l": 63.137
  },
  "oklch": {
    "l": 0.69342,
    "c": 0.1323,
    "h": 250.3
  },
  "luminance": 0.33514
}

Semantic roles & 50–950 ramp

primary

#57A1EB

secondary

#E9CFB4

accent

#730ADB

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1217

muted

#7E8185

Preview Lab

Preview with #57A1EB

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

Preview Lab → · Contrast checker → · Palette generator →