#233E79#233E79

#233E79 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.106 H 263.6°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#233E79
RGB	rgb(35, 62, 121)
HSL	hsl(221, 55%, 31%)
HSV	hsv(221, 71%, 47%)
CMYK	cmyk(71.1%, 48.8%, 0%, 52.5%)
CIE-LAB	lab(27.25, 11.17, -36.76)
CIE-LCH	lch(27.25, 38.42, 286.91°)
OKLab	oklab(37.66% -0.0118 -0.1053)
OKLCH	oklch(37.66% 0.106 263.6)
XYZ	xyz(5.8657, 5.1825, 18.7766)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233E79 #795E23

analogous

#236979 #233E79 #332379

triadic

#233E79 #79233E #3E7923

tetradic

#233E79 #792369 #795E23 #237933

square

#233E79 #792369 #795E23 #237933

split-complementary

#233E79 #793323 #697923

monochromatic

#080D1A #15264A #233E79 #3156A8 #4B73CB

Accessibility & contrast

On white

10.31

#233E79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#233E79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233E79

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233E79	#FFFFFF	#000000	##FFFFFF
##233E79	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20457B

Deuteranopia (green-blind)

#0D3D78

Tritanopia (blue-blind)

#004C55

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #233e79;
/* rgb */ color: rgb(35, 62, 121);
/* oklch */ color: oklch(37.7% 0.106 263.6);

Tailwind

colors: {
  custom: {
    50: '#6972a0',
    500: '#233e79',
    950: '#000000',
  },
}

SCSS

$custom: #233e79;
$custom-light: #6972a0;
$custom-dark: #000000;

JSON

{
  "hex": "#233e79",
  "rgb": {
    "r": 35,
    "g": 62,
    "b": 121
  },
  "hsl": {
    "h": 221.163,
    "s": 55.128,
    "l": 30.588
  },
  "oklch": {
    "l": 0.37663,
    "c": 0.10592,
    "h": 263.6
  },
  "luminance": 0.05183
}

Semantic roles & 50–950 ramp

primary

#233E79

secondary

#AC8E4C

accent

#B049DE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #233E79

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

Preview Lab → · Contrast checker → · Palette generator →