#2357A4#2357A4

#2357A4 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 46.5% C 0.136 H 258.5°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#2357A4
RGB	rgb(35, 87, 164)
HSL	hsl(216, 65%, 39%)
HSV	hsv(216, 79%, 64%)
CMYK	cmyk(78.7%, 47%, 0%, 35.7%)
CIE-LAB	lab(37.58, 11.24, -46.49)
CIE-LCH	lch(37.58, 47.83, 283.59°)
OKLab	oklab(46.53% -0.0272 -0.1334)
OKLCH	oklch(46.53% 0.136 258.5)
XYZ	xyz(10.7997, 9.8528, 36.4474)
Luminance	0.0985 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2357A4 #A47023

analogous

#2398A4 #2357A4 #3023A4

triadic

#2357A4 #A42357 #57A423

tetradic

#2357A4 #A42398 #A47023 #23A430

square

#2357A4 #A42398 #A47023 #23A430

split-complementary

#2357A4 #A43023 #98A423

monochromatic

#0D213F #183C72 #2357A4 #3172D3 #6495DE

Accessibility & contrast

On white

7.07

#2357A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#2357A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2357A4

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2357A4	#FFFFFF	#000000	##FFFFFF
##2357A4	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5FA7

Deuteranopia (green-blind)

#0C53A2

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2357a4;
/* rgb */ color: rgb(35, 87, 164);
/* oklch */ color: oklch(46.5% 0.136 258.5);

Tailwind

colors: {
  custom: {
    50: '#7285bf',
    500: '#2357a4',
    950: '#000000',
  },
}

SCSS

$custom: #2357a4;
$custom-light: #7285bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2357a4",
  "rgb": {
    "r": 35,
    "g": 87,
    "b": 164
  },
  "hsl": {
    "h": 215.814,
    "s": 64.824,
    "l": 39.02
  },
  "oklch": {
    "l": 0.46528,
    "c": 0.13619,
    "h": 258.5
  },
  "luminance": 0.09854
}

Semantic roles & 50–950 ramp

primary

#2357A4

secondary

#C39B60

accent

#A440E8

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2357A4

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

Preview Lab → · Contrast checker → · Palette generator →