#357CBB#357CBB

#357CBB is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.1% C 0.121 H 248.4°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#357CBB
RGB	rgb(53, 124, 187)
HSL	hsl(208, 56%, 47%)
HSV	hsv(208, 72%, 73%)
CMYK	cmyk(71.7%, 33.7%, 0%, 26.7%)
CIE-LAB	lab(50.40, -1.00, -39.50)
CIE-LCH	lch(50.40, 39.51, 268.54°)
OKLab	oklab(57.11% -0.0443 -0.1121)
OKLCH	oklch(57.11% 0.121 248.4)
XYZ	xyz(17.6421, 18.7581, 49.6950)
Luminance	0.1876 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357CBB #BB7435

analogous

#35BBB7 #357CBB #3539BB

triadic

#357CBB #BB357C #7CBB35

tetradic

#357CBB #B735BB #BB7435 #39BB35

square

#357CBB #B735BB #BB7435 #39BB35

split-complementary

#357CBB #BB3539 #BBB735

monochromatic

#1A3D5C #275C8B #357CBB #5C9AD1 #8CB8DE

Accessibility & contrast

On white

4.42

#357CBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#357CBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357CBB

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357CBB	#FFFFFF	#000000	##000000
##357CBB	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607FBE

Deuteranopia (green-blind)

#4D72BA

Tritanopia (blue-blind)

#008B93

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #357cbb;
/* rgb */ color: rgb(53, 124, 187);
/* oklch */ color: oklch(57.1% 0.121 248.4);

Tailwind

colors: {
  custom: {
    50: '#7da1d0',
    500: '#357cbb',
    950: '#000000',
  },
}

SCSS

$custom: #357cbb;
$custom-light: #7da1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#357cbb",
  "rgb": {
    "r": 53,
    "g": 124,
    "b": 187
  },
  "hsl": {
    "h": 208.209,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.57112,
    "c": 0.12052,
    "h": 248.4
  },
  "luminance": 0.1876
}

Semantic roles & 50–950 ramp

primary

#357CBB

secondary

#C9A483

accent

#8F49DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #357CBB

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

Preview Lab → · Contrast checker → · Palette generator →