#233C72#233C72

#233C72 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.098 H 263.6°. Best body text is #FFFFFF at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#233C72
RGB	rgb(35, 60, 114)
HSL	hsl(221, 53%, 29%)
HSV	hsv(221, 69%, 45%)
CMYK	cmyk(69.3%, 47.4%, 0%, 55.3%)
CIE-LAB	lab(26.17, 9.81, -34.06)
CIE-LCH	lch(26.17, 35.44, 286.06°)
OKLab	oklab(36.68% -0.0109 -0.0974)
OKLCH	oklch(36.68% 0.098 263.6)
XYZ	xyz(5.3452, 4.8034, 16.5618)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C72 #725923

analogous

#236472 #233C72 #322372

triadic

#233C72 #72233C #3C7223

tetradic

#233C72 #722364 #725923 #237232

square

#233C72 #722364 #725923 #237232

split-complementary

#233C72 #723223 #647223

monochromatic

#070C17 #152343 #233C72 #3155A1 #4870C7

Accessibility & contrast

On white

10.71

#233C72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#233C72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C72

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C72	#FFFFFF	#000000	##FFFFFF
##233C72	1.00	10.71	1.96	10.71
#FFFFFF	10.71	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224274

Deuteranopia (green-blind)

#133B71

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #233c72;
/* rgb */ color: rgb(35, 60, 114);
/* oklch */ color: oklch(36.7% 0.098 263.6);

Tailwind

colors: {
  custom: {
    50: '#67719b',
    500: '#233c72',
    950: '#000000',
  },
}

SCSS

$custom: #233c72;
$custom-light: #67719b;
$custom-dark: #000000;

JSON

{
  "hex": "#233c72",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 114
  },
  "hsl": {
    "h": 221.013,
    "s": 53.02,
    "l": 29.216
  },
  "oklch": {
    "l": 0.36682,
    "c": 0.09798,
    "h": 263.6
  },
  "luminance": 0.04804
}

Semantic roles & 50–950 ramp

primary

#233C72

secondary

#A5894C

accent

#AF4BDC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233C72

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

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