#233D89#233D89

#233D89 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.7% C 0.131 H 266.1°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#233D89
RGB	rgb(35, 61, 137)
HSL	hsl(225, 59%, 34%)
HSV	hsv(225, 74%, 54%)
CMYK	cmyk(74.5%, 55.5%, 0%, 46.3%)
CIE-LAB	lab(28.11, 18.19, -45.36)
CIE-LCH	lch(28.11, 48.87, 291.85°)
OKLab	oklab(38.69% -0.0089 -0.1306)
OKLCH	oklch(38.69% 0.131 266.1)
XYZ	xyz(6.8757, 5.5002, 24.3614)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D89 #896F23

analogous

#237089 #233D89 #3C2389

triadic

#233D89 #89233D #3D8923

tetradic

#233D89 #892370 #896F23 #23893C

square

#233D89 #892370 #896F23 #23893C

split-complementary

#233D89 #893C23 #708923

monochromatic

#0A1228 #172758 #233D89 #2F53BA #5374D3

Accessibility & contrast

On white

10.00

#233D89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#233D89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D89

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D89	#FFFFFF	#000000	##FFFFFF
##233D89	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01478C

Deuteranopia (green-blind)

#003E87

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #233d89;
/* rgb */ color: rgb(35, 61, 137);
/* oklch */ color: oklch(38.7% 0.131 266.1);

Tailwind

colors: {
  custom: {
    50: '#6d72ac',
    500: '#233d89',
    950: '#000000',
  },
}

SCSS

$custom: #233d89;
$custom-light: #6d72ac;
$custom-dark: #000000;

JSON

{
  "hex": "#233d89",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 137
  },
  "hsl": {
    "h": 224.706,
    "s": 59.302,
    "l": 33.725
  },
  "oklch": {
    "l": 0.38692,
    "c": 0.13089,
    "h": 266.1
  },
  "luminance": 0.05501
}

Semantic roles & 50–950 ramp

primary

#233D89

secondary

#B79D51

accent

#BA45E2

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233D89

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

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