#234EA3#234EA3

#234EA3 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.5% C 0.146 H 262.1°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#234EA3
RGB	rgb(35, 78, 163)
HSL	hsl(220, 65%, 39%)
HSV	hsv(220, 79%, 64%)
CMYK	cmyk(78.5%, 52.1%, 0%, 36.1%)
CIE-LAB	lab(34.90, 16.84, -50.21)
CIE-LCH	lch(34.90, 52.96, 288.55°)
OKLab	oklab(44.46% -0.02 -0.1446)
OKLCH	oklch(44.46% 0.146 262.1)
XYZ	xyz(10.0260, 8.4493, 35.7457)
Luminance	0.0845 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#234EA3 #A37823

analogous

#238EA3 #234EA3 #3823A3

triadic

#234EA3 #A3234E #4EA323

tetradic

#234EA3 #A3238E #A37823 #23A338

square

#234EA3 #A3238E #A37823 #23A338

split-complementary

#234EA3 #A33823 #8EA323

monochromatic

#0D1E3E #183671 #234EA3 #3167D3 #638CDD

Accessibility & contrast

On white

7.81

#234EA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#234EA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #234EA3

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##234EA3	#FFFFFF	#000000	##FFFFFF
##234EA3	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1558A6

Deuteranopia (green-blind)

#004DA1

Tritanopia (blue-blind)

#006371

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #234ea3;
/* rgb */ color: rgb(35, 78, 163);
/* oklch */ color: oklch(44.5% 0.146 262.1);

Tailwind

colors: {
  custom: {
    50: '#727fbf',
    500: '#234ea3',
    950: '#000000',
  },
}

SCSS

$custom: #234ea3;
$custom-light: #727fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#234ea3",
  "rgb": {
    "r": 35,
    "g": 78,
    "b": 163
  },
  "hsl": {
    "h": 219.844,
    "s": 64.646,
    "l": 38.824
  },
  "oklch": {
    "l": 0.44455,
    "c": 0.14593,
    "h": 262.1
  },
  "luminance": 0.0845
}

Semantic roles & 50–950 ramp

primary

#234EA3

secondary

#C3A15F

accent

#AF40E8

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #234EA3

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

Preview Lab → · Contrast checker → · Palette generator →