#234CA3#234CA3

#234CA3 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.0% C 0.148 H 262.8°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#234CA3
RGB	rgb(35, 76, 163)
HSL	hsl(221, 65%, 39%)
HSV	hsv(221, 79%, 64%)
CMYK	cmyk(78.5%, 53.4%, 0%, 36.1%)
CIE-LAB	lab(34.33, 18.19, -51.13)
CIE-LCH	lch(34.33, 54.27, 289.58°)
OKLab	oklab(44.02% -0.0185 -0.1473)
OKLCH	oklch(44.02% 0.148 262.8)
XYZ	xyz(9.8861, 8.1694, 35.6991)
Luminance	0.0817 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#234CA3 #A37A23

analogous

#238CA3 #234CA3 #3A23A3

triadic

#234CA3 #A3234C #4CA323

tetradic

#234CA3 #A3238C #A37A23 #23A33A

square

#234CA3 #A3238C #A37A23 #23A33A

split-complementary

#234CA3 #A33A23 #8CA323

monochromatic

#0D1D3E #183571 #234CA3 #3164D3 #638ADD

Accessibility & contrast

On white

7.97

#234CA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#234CA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #234CA3

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##234CA3	#FFFFFF	#000000	##FFFFFF
##234CA3	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C57A6

Deuteranopia (green-blind)

#004BA1

Tritanopia (blue-blind)

#006170

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #234ca3;
/* rgb */ color: rgb(35, 76, 163);
/* oklch */ color: oklch(44.0% 0.148 262.8);

Tailwind

colors: {
  custom: {
    50: '#727dbf',
    500: '#234ca3',
    950: '#000000',
  },
}

SCSS

$custom: #234ca3;
$custom-light: #727dbf;
$custom-dark: #000000;

JSON

{
  "hex": "#234ca3",
  "rgb": {
    "r": 35,
    "g": 76,
    "b": 163
  },
  "hsl": {
    "h": 220.781,
    "s": 64.646,
    "l": 38.824
  },
  "oklch": {
    "l": 0.44023,
    "c": 0.14846,
    "h": 262.8
  },
  "luminance": 0.08171
}

Semantic roles & 50–950 ramp

primary

#234CA3

secondary

#C3A35F

accent

#B240E8

background

#F7F7FB

surface

#EDEEF7

border

#C8C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #234CA3

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

Preview Lab → · Contrast checker → · Palette generator →