#233A77#233A77

#233A77 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.6% C 0.108 H 265.7°. Best body text is #FFFFFF at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#233A77
RGB	rgb(35, 58, 119)
HSL	hsl(224, 55%, 30%)
HSV	hsv(224, 71%, 47%)
CMYK	cmyk(70.6%, 51.3%, 0%, 53.3%)
CIE-LAB	lab(25.91, 13.17, -37.65)
CIE-LCH	lch(25.91, 39.89, 289.28°)
OKLab	oklab(36.59% -0.008 -0.108)
OKLCH	oklch(36.59% 0.108 265.7)
XYZ	xyz(5.5348, 4.7148, 18.0675)
Luminance	0.0471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A77 #776023

analogous

#236477 #233A77 #362377

triadic

#233A77 #77233A #3A7723

tetradic

#233A77 #772364 #776023 #237736

square

#233A77 #772364 #776023 #237736

split-complementary

#233A77 #773623 #647723

monochromatic

#070C18 #152348 #233A77 #3151A6 #4A6DCA

Accessibility & contrast

On white

10.81

#233A77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#233A77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A77

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A77	#FFFFFF	#000000	##FFFFFF
##233A77	1.00	10.81	1.94	10.81
#FFFFFF	10.81	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184179

Deuteranopia (green-blind)

#023A76

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233a77;
/* rgb */ color: rgb(35, 58, 119);
/* oklch */ color: oklch(36.6% 0.108 265.7);

Tailwind

colors: {
  custom: {
    50: '#696f9f',
    500: '#233a77',
    950: '#000000',
  },
}

SCSS

$custom: #233a77;
$custom-light: #696f9f;
$custom-dark: #000000;

JSON

{
  "hex": "#233a77",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 119
  },
  "hsl": {
    "h": 223.571,
    "s": 54.545,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36593,
    "c": 0.10827,
    "h": 265.7
  },
  "luminance": 0.04715
}

Semantic roles & 50–950 ramp

primary

#233A77

secondary

#AA904C

accent

#B54ADE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233A77

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

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