#357DB4#357DB4

#357DB4 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 57.0% C 0.111 H 244.8°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#357DB4
RGB	rgb(53, 125, 180)
HSL	hsl(206, 55%, 46%)
HSV	hsv(206, 71%, 71%)
CMYK	cmyk(70.6%, 30.6%, 0%, 29.4%)
CIE-LAB	lab(50.35, -4.10, -35.54)
CIE-LCH	lch(50.35, 35.78, 263.43°)
OKLab	oklab(56.96% -0.0474 -0.1005)
OKLCH	oklch(56.96% 0.111 244.8)
XYZ	xyz(17.0369, 18.7175, 45.8861)
Luminance	0.1872 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357DB4 #B46C35

analogous

#35B4AB #357DB4 #353EB4

triadic

#357DB4 #B4357D #7DB435

tetradic

#357DB4 #AB35B4 #B46C35 #3EB435

square

#357DB4 #AB35B4 #B46C35 #3EB435

split-complementary

#357DB4 #B4353E #B4AB35

monochromatic

#193B55 #275C85 #357DB4 #589BCE #88B7DC

Accessibility & contrast

On white

4.43

#357DB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#357DB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357DB4

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357DB4	#FFFFFF	#000000	##000000
##357DB4	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#647FB6

Deuteranopia (green-blind)

#5372B3

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #357db4;
/* rgb */ color: rgb(53, 125, 180);
/* oklch */ color: oklch(57.0% 0.111 244.8);

Tailwind

colors: {
  custom: {
    50: '#7ba2ca',
    500: '#357db4',
    950: '#000000',
  },
}

SCSS

$custom: #357db4;
$custom-light: #7ba2ca;
$custom-dark: #000000;

JSON

{
  "hex": "#357db4",
  "rgb": {
    "r": 53,
    "g": 125,
    "b": 180
  },
  "hsl": {
    "h": 205.984,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.56961,
    "c": 0.11114,
    "h": 244.8
  },
  "luminance": 0.18719
}

Semantic roles & 50–950 ramp

primary

#357DB4

secondary

#C69E7F

accent

#8A4ADE

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #357DB4

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

Preview Lab → · Contrast checker → · Palette generator →