#233D8C#233D8C

#233D8C is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.9% C 0.135 H 266.3°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#233D8C
RGB	rgb(35, 61, 140)
HSL	hsl(225, 60%, 34%)
HSV	hsv(225, 75%, 55%)
CMYK	cmyk(75%, 56.4%, 0%, 45.1%)
CIE-LAB	lab(28.35, 19.36, -46.84)
CIE-LCH	lch(28.35, 50.68, 292.46°)
OKLab	oklab(38.94% -0.0086 -0.1349)
OKLCH	oklch(38.94% 0.135 266.3)
XYZ	xyz(7.0938, 5.5875, 25.5105)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D8C #8C7223

analogous

#23728C #233D8C #3E238C

triadic

#233D8C #8C233D #3D8C23

tetradic

#233D8C #8C2372 #8C7223 #238C3E

square

#233D8C #8C2372 #8C7223 #238C3E

split-complementary

#233D8C #8C3E23 #728C23

monochromatic

#0B122A #17285B #233D8C #2F52BD #5575D4

Accessibility & contrast

On white

9.92

#233D8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#233D8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D8C

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D8C	#FFFFFF	#000000	##FFFFFF
##233D8C	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00488F

Deuteranopia (green-blind)

#003E8A

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #233d8c;
/* rgb */ color: rgb(35, 61, 140);
/* oklch */ color: oklch(38.9% 0.135 266.3);

Tailwind

colors: {
  custom: {
    50: '#6d72ae',
    500: '#233d8c',
    950: '#000000',
  },
}

SCSS

$custom: #233d8c;
$custom-light: #6d72ae;
$custom-dark: #000000;

JSON

{
  "hex": "#233d8c",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 140
  },
  "hsl": {
    "h": 225.143,
    "s": 60,
    "l": 34.314
  },
  "oklch": {
    "l": 0.38941,
    "c": 0.13522,
    "h": 266.3
  },
  "luminance": 0.05588
}

Semantic roles & 50–950 ramp

primary

#233D8C

secondary

#B89F52

accent

#BC45E3

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233D8C

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

Preview Lab → · Contrast checker → · Palette generator →