#357DB8#357DB8

#357DB8 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.2% C 0.116 H 246.5°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#357DB8
RGB	rgb(53, 125, 184)
HSL	hsl(207, 55%, 46%)
HSV	hsv(207, 71%, 72%)
CMYK	cmyk(71.2%, 32.1%, 0%, 27.8%)
CIE-LAB	lab(50.55, -2.67, -37.54)
CIE-LCH	lch(50.55, 37.64, 265.93°)
OKLab	oklab(57.18% -0.0462 -0.1063)
OKLCH	oklch(57.18% 0.116 246.5)
XYZ	xyz(17.4503, 18.8829, 48.0632)
Luminance	0.1888 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#357DB8 #B87035

analogous

#35B8B2 #357DB8 #353CB8

triadic

#357DB8 #B8357D #7DB835

tetradic

#357DB8 #B235B8 #B87035 #3CB835

square

#357DB8 #B235B8 #B87035 #3CB835

split-complementary

#357DB8 #B8353C #B8B235

monochromatic

#1A3C59 #275D88 #357DB8 #5B9BD0 #8AB8DD

Accessibility & contrast

On white

4.40

#357DB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#357DB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #357DB8

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##357DB8	#FFFFFF	#000000	##000000
##357DB8	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627FBB

Deuteranopia (green-blind)

#5073B7

Tritanopia (blue-blind)

#008B92

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #357db8;
/* rgb */ color: rgb(53, 125, 184);
/* oklch */ color: oklch(57.2% 0.116 246.5);

Tailwind

colors: {
  custom: {
    50: '#7ca2cd',
    500: '#357db8',
    950: '#000000',
  },
}

SCSS

$custom: #357db8;
$custom-light: #7ca2cd;
$custom-dark: #000000;

JSON

{
  "hex": "#357db8",
  "rgb": {
    "r": 53,
    "g": 125,
    "b": 184
  },
  "hsl": {
    "h": 207.023,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.57179,
    "c": 0.11595,
    "h": 246.5
  },
  "luminance": 0.18885
}

Semantic roles & 50–950 ramp

primary

#357DB8

secondary

#C7A181

accent

#8C49DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #357DB8

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

Preview Lab → · Contrast checker → · Palette generator →