#233A73#233A73

#233A73 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.3% C 0.102 H 265.2°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#233A73
RGB	rgb(35, 58, 115)
HSL	hsl(223, 53%, 29%)
HSV	hsv(223, 70%, 45%)
CMYK	cmyk(69.6%, 49.6%, 0%, 54.9%)
CIE-LAB	lab(25.63, 11.60, -35.56)
CIE-LCH	lch(25.63, 37.41, 288.06°)
OKLab	oklab(36.29% -0.0086 -0.1018)
OKLCH	oklch(36.29% 0.102 265.2)
XYZ	xyz(5.2996, 4.6207, 16.8289)
Luminance	0.0462 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A73 #735C23

analogous

#236273 #233A73 #342373

triadic

#233A73 #73233A #3A7323

tetradic

#233A73 #732362 #735C23 #237334

square

#233A73 #732362 #735C23 #237334

split-complementary

#233A73 #733423 #627323

monochromatic

#070C17 #152244 #233A73 #3152A2 #496DC8

Accessibility & contrast

On white

10.91

#233A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#233A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A73

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A73	#FFFFFF	#000000	##FFFFFF
##233A73	1.00	10.91	1.92	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4175

Deuteranopia (green-blind)

#0B3972

Tritanopia (blue-blind)

#004751

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233a73;
/* rgb */ color: rgb(35, 58, 115);
/* oklch */ color: oklch(36.3% 0.102 265.2);

Tailwind

colors: {
  custom: {
    50: '#686f9c',
    500: '#233a73',
    950: '#000000',
  },
}

SCSS

$custom: #233a73;
$custom-light: #686f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#233a73",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 115
  },
  "hsl": {
    "h": 222.75,
    "s": 53.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.36289,
    "c": 0.10219,
    "h": 265.2
  },
  "luminance": 0.04621
}

Semantic roles & 50–950 ramp

primary

#233A73

secondary

#A68C4C

accent

#B34BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233A73

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

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