#357BD0#357BD0

#357BD0 is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.1% C 0.148 H 255.1°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#357BD0
RGB	rgb(53, 123, 208)
HSL	hsl(213, 62%, 51%)
HSV	hsv(213, 75%, 82%)
CMYK	cmyk(74.5%, 40.9%, 0%, 18.4%)
CIE-LAB	lab(51.24, 7.24, -50.17)
CIE-LCH	lch(51.24, 50.69, 278.21°)
OKLab	oklab(58.13% -0.0381 -0.1434)
OKLCH	oklch(58.13% 0.148 255.1)
XYZ	xyz(19.9321, 19.4746, 62.3708)
Luminance	0.1948 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357BD0 #D08A35

analogous

#35C9D0 #357BD0 #3C35D0

triadic

#357BD0 #D0357B #7BD035

tetradic

#357BD0 #D035C9 #D08A35 #35D03C

square

#357BD0 #D035C9 #D08A35 #35D03C

split-complementary

#357BD0 #D03C35 #C9D035

monochromatic

#1A4170 #265EA2 #357BD0 #679BDC #98BCE7

Accessibility & contrast

On white

4.29

#357BD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#357BD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357BD0

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357BD0	#FFFFFF	#000000	##000000
##357BD0	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5282D3

Deuteranopia (green-blind)

#3874CE

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #357bd0;
/* rgb */ color: rgb(53, 123, 208);
/* oklch */ color: oklch(58.1% 0.148 255.1);

Tailwind

colors: {
  custom: {
    50: '#81a0df',
    500: '#357bd0',
    950: '#000000',
  },
}

SCSS

$custom: #357bd0;
$custom-light: #81a0df;
$custom-dark: #000000;

JSON

{
  "hex": "#357bd0",
  "rgb": {
    "r": 53,
    "g": 123,
    "b": 208
  },
  "hsl": {
    "h": 212.903,
    "s": 62.249,
    "l": 51.176
  },
  "oklch": {
    "l": 0.58132,
    "c": 0.14835,
    "h": 255.1
  },
  "luminance": 0.19477
}

Semantic roles & 50–950 ramp

primary

#357BD0

secondary

#D3B48E

accent

#9C42E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #357BD0

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

Preview Lab → · Contrast checker → · Palette generator →