#233E8B#233E8B

#233E8B is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.1% C 0.132 H 265.9°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#233E8B
RGB	rgb(35, 62, 139)
HSL	hsl(224, 60%, 34%)
HSV	hsv(224, 75%, 55%)
CMYK	cmyk(74.8%, 55.4%, 0%, 45.5%)
CIE-LAB	lab(28.55, 18.28, -45.88)
CIE-LCH	lch(28.55, 49.39, 291.72°)
OKLab	oklab(39.07% -0.0095 -0.1321)
OKLCH	oklch(39.07% 0.132 265.9)
XYZ	xyz(7.0743, 5.6659, 25.1419)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233E8B #8B7023

analogous

#23728B #233E8B #3C238B

triadic

#233E8B #8B233E #3E8B23

tetradic

#233E8B #8B2372 #8B7023 #238B3C

square

#233E8B #8B2372 #8B7023 #238B3C

split-complementary

#233E8B #8B3C23 #728B23

monochromatic

#0A1229 #17285A #233E8B #2F54BC #5476D4

Accessibility & contrast

On white

9.84

#233E8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#233E8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233E8B

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233E8B	#FFFFFF	#000000	##FFFFFF
##233E8B	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01488E

Deuteranopia (green-blind)

#003F89

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #233e8b;
/* rgb */ color: rgb(35, 62, 139);
/* oklch */ color: oklch(39.1% 0.132 265.9);

Tailwind

colors: {
  custom: {
    50: '#6d72ad',
    500: '#233e8b',
    950: '#000000',
  },
}

SCSS

$custom: #233e8b;
$custom-light: #6d72ad;
$custom-dark: #000000;

JSON

{
  "hex": "#233e8b",
  "rgb": {
    "r": 35,
    "g": 62,
    "b": 139
  },
  "hsl": {
    "h": 224.423,
    "s": 59.77,
    "l": 34.118
  },
  "oklch": {
    "l": 0.39072,
    "c": 0.13246,
    "h": 265.9
  },
  "luminance": 0.05667
}

Semantic roles & 50–950 ramp

primary

#233E8B

secondary

#B89D52

accent

#BA45E3

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #233E8B

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

Preview Lab → · Contrast checker → · Palette generator →