#357BBD#357BBD

#357BBD is a mid, vivid cyan. Relative luminance 0.186; OKLCH L 57.0% C 0.124 H 249.8°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#357BBD
RGB	rgb(53, 123, 189)
HSL	hsl(209, 56%, 47%)
HSV	hsv(209, 72%, 74%)
CMYK	cmyk(72%, 34.9%, 0%, 25.9%)
CIE-LAB	lab(50.21, 0.32, -40.95)
CIE-LCH	lch(50.21, 40.95, 270.44°)
OKLab	oklab(56.99% -0.0428 -0.1163)
OKLCH	oklch(56.99% 0.124 249.8)
XYZ	xyz(17.7330, 18.5950, 50.7889)
Luminance	0.1860 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357BBD #BD7735

analogous

#35BDBB #357BBD #3537BD

triadic

#357BBD #BD357B #7BBD35

tetradic

#357BBD #BB35BD #BD7735 #37BD35

square

#357BBD #BB35BD #BD7735 #37BD35

split-complementary

#357BBD #BD3537 #BDBB35

monochromatic

#1A3D5D #285C8D #357BBD #5D99D2 #8DB7DF

Accessibility & contrast

On white

4.45

#357BBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#357BBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357BBD

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357BBD	#FFFFFF	#000000	##000000
##357BBD	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7EC0

Deuteranopia (green-blind)

#4972BC

Tritanopia (blue-blind)

#008B93

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #357bbd;
/* rgb */ color: rgb(53, 123, 189);
/* oklch */ color: oklch(57.0% 0.124 249.8);

Tailwind

colors: {
  custom: {
    50: '#7da0d1',
    500: '#357bbd',
    950: '#000000',
  },
}

SCSS

$custom: #357bbd;
$custom-light: #7da0d1;
$custom-dark: #000000;

JSON

{
  "hex": "#357bbd",
  "rgb": {
    "r": 53,
    "g": 123,
    "b": 189
  },
  "hsl": {
    "h": 209.118,
    "s": 56.198,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56994,
    "c": 0.12397,
    "h": 249.8
  },
  "luminance": 0.18597
}

Semantic roles & 50–950 ramp

primary

#357BBD

secondary

#CAA684

accent

#9248DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #357BBD

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

Preview Lab → · Contrast checker → · Palette generator →