#234FA4#234FA4

#234FA4 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.8% C 0.146 H 261.8°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#234FA4
RGB	rgb(35, 79, 164)
HSL	hsl(220, 65%, 39%)
HSV	hsv(220, 79%, 64%)
CMYK	cmyk(78.7%, 51.8%, 0%, 35.7%)
CIE-LAB	lab(35.26, 16.57, -50.23)
CIE-LCH	lch(35.26, 52.89, 288.25°)
OKLab	oklab(44.75% -0.0207 -0.1446)
OKLCH	oklch(44.75% 0.146 261.8)
XYZ	xyz(10.1875, 8.6284, 36.2433)
Luminance	0.0863 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#234FA4 #A47823

analogous

#2390A4 #234FA4 #3823A4

triadic

#234FA4 #A4234F #4FA423

tetradic

#234FA4 #A42390 #A47823 #23A438

square

#234FA4 #A42390 #A47823 #23A438

split-complementary

#234FA4 #A43823 #90A423

monochromatic

#0D1E3F #183772 #234FA4 #3168D3 #648DDE

Accessibility & contrast

On white

7.70

#234FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#234FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #234FA4

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##234FA4	#FFFFFF	#000000	##FFFFFF
##234FA4	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1759A7

Deuteranopia (green-blind)

#004DA2

Tritanopia (blue-blind)

#006472

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #234fa4;
/* rgb */ color: rgb(35, 79, 164);
/* oklch */ color: oklch(44.8% 0.146 261.8);

Tailwind

colors: {
  custom: {
    50: '#727fc0',
    500: '#234fa4',
    950: '#000000',
  },
}

SCSS

$custom: #234fa4;
$custom-light: #727fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#234fa4",
  "rgb": {
    "r": 35,
    "g": 79,
    "b": 164
  },
  "hsl": {
    "h": 219.535,
    "s": 64.824,
    "l": 39.02
  },
  "oklch": {
    "l": 0.4475,
    "c": 0.14608,
    "h": 261.8
  },
  "luminance": 0.0863
}

Semantic roles & 50–950 ramp

primary

#234FA4

secondary

#C3A160

accent

#AF40E8

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #234FA4

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

Preview Lab → · Contrast checker → · Palette generator →