#357BBF#357BBF

#357BBF is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.1% C 0.126 H 250.5°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#357BBF
RGB	rgb(53, 123, 191)
HSL	hsl(210, 57%, 48%)
HSV	hsv(210, 72%, 75%)
CMYK	cmyk(72.3%, 35.6%, 0%, 25.1%)
CIE-LAB	lab(50.31, 1.04, -41.94)
CIE-LCH	lch(50.31, 41.95, 271.42°)
OKLab	oklab(57.11% -0.0423 -0.1192)
OKLCH	oklch(57.11% 0.126 250.5)
XYZ	xyz(17.9516, 18.6824, 51.9401)
Luminance	0.1868 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357BBF #BF7935

analogous

#35BFBE #357BBF #3536BF

triadic

#357BBF #BF357B #7BBF35

tetradic

#357BBF #BE35BF #BF7935 #36BF35

square

#357BBF #BE35BF #BF7935 #36BF35

split-complementary

#357BBF #BF3536 #BFBE35

monochromatic

#1A3D5F #285C8F #357BBF #5F99D3 #8FB8E0

Accessibility & contrast

On white

4.43

#357BBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#357BBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357BBF

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357BBF	#FFFFFF	#000000	##000000
##357BBF	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)

#5C7FC2

Deuteranopia (green-blind)

#4872BE

Tritanopia (blue-blind)

#008B94

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #357bbf;
/* rgb */ color: rgb(53, 123, 191);
/* oklch */ color: oklch(57.1% 0.126 250.5);

Tailwind

colors: {
  custom: {
    50: '#7da0d2',
    500: '#357bbf',
    950: '#000000',
  },
}

SCSS

$custom: #357bbf;
$custom-light: #7da0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#357bbf",
  "rgb": {
    "r": 53,
    "g": 123,
    "b": 191
  },
  "hsl": {
    "h": 209.565,
    "s": 56.557,
    "l": 47.843
  },
  "oklch": {
    "l": 0.57109,
    "c": 0.12648,
    "h": 250.5
  },
  "luminance": 0.18684
}

Semantic roles & 50–950 ramp

primary

#357BBF

secondary

#CAA785

accent

#9348E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #357BBF

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

Preview Lab → · Contrast checker → · Palette generator →