#233E81#233E81

#233E81 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.3% C 0.118 H 264.8°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#233E81
RGB	rgb(35, 62, 129)
HSL	hsl(223, 57%, 32%)
HSV	hsv(223, 73%, 51%)
CMYK	cmyk(72.9%, 51.9%, 0%, 49.4%)
CIE-LAB	lab(27.81, 14.33, -40.87)
CIE-LCH	lch(27.81, 43.31, 289.33°)
OKLab	oklab(38.27% -0.0106 -0.1174)
OKLCH	oklch(38.27% 0.118 264.8)
XYZ	xyz(6.3768, 5.3869, 21.4683)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233E81 #816623

analogous

#236D81 #233E81 #372381

triadic

#233E81 #81233E #3E8123

tetradic

#233E81 #81236D #816623 #238137

square

#233E81 #81236D #816623 #238137

split-complementary

#233E81 #813723 #6D8123

monochromatic

#091021 #162751 #233E81 #3055B1 #4F74CF

Accessibility & contrast

On white

10.11

#233E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#233E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233E81

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233E81	#FFFFFF	#000000	##FFFFFF
##233E81	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164683

Deuteranopia (green-blind)

#003E80

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #233e81;
/* rgb */ color: rgb(35, 62, 129);
/* oklch */ color: oklch(38.3% 0.118 264.8);

Tailwind

colors: {
  custom: {
    50: '#6b72a6',
    500: '#233e81',
    950: '#000000',
  },
}

SCSS

$custom: #233e81;
$custom-light: #6b72a6;
$custom-dark: #000000;

JSON

{
  "hex": "#233e81",
  "rgb": {
    "r": 35,
    "g": 62,
    "b": 129
  },
  "hsl": {
    "h": 222.766,
    "s": 57.317,
    "l": 32.157
  },
  "oklch": {
    "l": 0.38272,
    "c": 0.11786,
    "h": 264.8
  },
  "luminance": 0.05388
}

Semantic roles & 50–950 ramp

primary

#233E81

secondary

#B3964D

accent

#B547E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #233E81

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

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