#233C88#233C88

#233C88 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.4% C 0.131 H 266.5°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#233C88
RGB	rgb(35, 60, 136)
HSL	hsl(225, 59%, 34%)
HSV	hsv(225, 74%, 53%)
CMYK	cmyk(74.3%, 55.9%, 0%, 46.7%)
CIE-LAB	lab(27.75, 18.48, -45.32)
CIE-LCH	lch(27.75, 48.95, 292.19°)
OKLab	oklab(38.4% -0.0081 -0.1305)
OKLCH	oklch(38.4% 0.131 266.5)
XYZ	xyz(6.7514, 5.3659, 23.9677)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C88 #886F23

analogous

#236E88 #233C88 #3D2388

triadic

#233C88 #88233C #3C8823

tetradic

#233C88 #88236E #886F23 #23883D

square

#233C88 #88236E #886F23 #23883D

split-complementary

#233C88 #883D23 #6E8823

monochromatic

#0A1127 #162757 #233C88 #3051B9 #5372D3

Accessibility & contrast

On white

10.13

#233C88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#233C88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C88

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C88	#FFFFFF	#000000	##FFFFFF
##233C88	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468B

Deuteranopia (green-blind)

#003D86

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233c88;
/* rgb */ color: rgb(35, 60, 136);
/* oklch */ color: oklch(38.4% 0.131 266.5);

Tailwind

colors: {
  custom: {
    50: '#6d71ab',
    500: '#233c88',
    950: '#000000',
  },
}

SCSS

$custom: #233c88;
$custom-light: #6d71ab;
$custom-dark: #000000;

JSON

{
  "hex": "#233c88",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 136
  },
  "hsl": {
    "h": 225.149,
    "s": 59.064,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38395,
    "c": 0.13076,
    "h": 266.5
  },
  "luminance": 0.05367
}

Semantic roles & 50–950 ramp

primary

#233C88

secondary

#B79D50

accent

#BB46E2

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233C88

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

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