#233F85#233F85

#233F85 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.8% C 0.122 H 264.8°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#233F85
RGB	rgb(35, 63, 133)
HSL	hsl(223, 58%, 33%)
HSV	hsv(223, 74%, 52%)
CMYK	cmyk(73.7%, 52.6%, 0%, 47.8%)
CIE-LAB	lab(28.39, 15.22, -42.42)
CIE-LCH	lch(28.39, 45.07, 289.74°)
OKLab	oklab(38.81% -0.011 -0.1219)
OKLCH	oklch(38.81% 0.122 264.8)
XYZ	xyz(6.7028, 5.6051, 22.9144)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F85 #856923

analogous

#237085 #233F85 #382385

triadic

#233F85 #85233F #3F8523

tetradic

#233F85 #852370 #856923 #238538

square

#233F85 #852370 #856923 #238538

split-complementary

#233F85 #853823 #708523

monochromatic

#091124 #162855 #233F85 #3056B5 #5176D1

Accessibility & contrast

On white

9.90

#233F85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#233F85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F85

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F85	#FFFFFF	#000000	##FFFFFF
##233F85	1.00	9.90	2.12	9.90
#FFFFFF	9.90	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144888

Deuteranopia (green-blind)

#003F84

Tritanopia (blue-blind)

#00505B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #233f85;
/* rgb */ color: rgb(35, 63, 133);
/* oklch */ color: oklch(38.8% 0.122 264.8);

Tailwind

colors: {
  custom: {
    50: '#6c73a9',
    500: '#233f85',
    950: '#000000',
  },
}

SCSS

$custom: #233f85;
$custom-light: #6c73a9;
$custom-dark: #000000;

JSON

{
  "hex": "#233f85",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 133
  },
  "hsl": {
    "h": 222.857,
    "s": 58.333,
    "l": 32.941
  },
  "oklch": {
    "l": 0.38809,
    "c": 0.12242,
    "h": 264.8
  },
  "luminance": 0.05606
}

Semantic roles & 50–950 ramp

primary

#233F85

secondary

#B5984F

accent

#B546E2

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #233F85

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

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