#233F72#233F72

#233F72 is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.4% C 0.094 H 261.4°. Best body text is #FFFFFF at 10.37:1 contrast (WCAG AA passes).

Color values

HEX	#233F72
RGB	rgb(35, 63, 114)
HSL	hsl(219, 53%, 29%)
HSV	hsv(219, 69%, 45%)
CMYK	cmyk(69.3%, 44.7%, 0%, 55.3%)
CIE-LAB	lab(27.09, 7.73, -32.58)
CIE-LCH	lch(27.09, 33.48, 283.35°)
OKLab	oklab(37.39% -0.0141 -0.093)
OKLCH	oklch(37.39% 0.094 261.4)
XYZ	xyz(5.5068, 5.1267, 16.6157)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F72 #725623

analogous

#236772 #233F72 #2F2372

triadic

#233F72 #72233F #3F7223

tetradic

#233F72 #722367 #725623 #23722F

square

#233F72 #722367 #725623 #23722F

split-complementary

#233F72 #722F23 #677223

monochromatic

#070D17 #152543 #233F72 #3159A1 #4875C7

Accessibility & contrast

On white

10.37

#233F72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#233F72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F72

10.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F72	#FFFFFF	#000000	##FFFFFF
##233F72	1.00	10.37	2.03	10.37
#FFFFFF	10.37	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274474

Deuteranopia (green-blind)

#1A3D71

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #233f72;
/* rgb */ color: rgb(35, 63, 114);
/* oklch */ color: oklch(37.4% 0.094 261.4);

Tailwind

colors: {
  custom: {
    50: '#67739b',
    500: '#233f72',
    950: '#000000',
  },
}

SCSS

$custom: #233f72;
$custom-light: #67739b;
$custom-dark: #000000;

JSON

{
  "hex": "#233f72",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 114
  },
  "hsl": {
    "h": 218.734,
    "s": 53.02,
    "l": 29.216
  },
  "oklch": {
    "l": 0.37394,
    "c": 0.09404,
    "h": 261.4
  },
  "luminance": 0.05127
}

Semantic roles & 50–950 ramp

primary

#233F72

secondary

#A5854C

accent

#A94BDC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #233F72

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

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