#233E83#233E83

#233E83 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.4% C 0.121 H 265.1°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#233E83
RGB	rgb(35, 62, 131)
HSL	hsl(223, 58%, 33%)
HSV	hsv(223, 73%, 51%)
CMYK	cmyk(73.3%, 52.7%, 0%, 48.6%)
CIE-LAB	lab(27.95, 15.13, -41.89)
CIE-LCH	lch(27.95, 44.53, 289.85°)
OKLab	oklab(38.43% -0.0103 -0.1204)
OKLCH	oklch(38.43% 0.121 265.1)
XYZ	xyz(6.5111, 5.4406, 22.1753)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233E83 #836823

analogous

#236E83 #233E83 #382383

triadic

#233E83 #83233E #3E8323

tetradic

#233E83 #83236E #836823 #238338

square

#233E83 #83236E #836823 #238338

split-complementary

#233E83 #833823 #6E8323

monochromatic

#091022 #162753 #233E83 #3055B3 #5074D0

Accessibility & contrast

On white

10.06

#233E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#233E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233E83

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233E83	#FFFFFF	#000000	##FFFFFF
##233E83	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144785

Deuteranopia (green-blind)

#003E82

Tritanopia (blue-blind)

#004E5A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #233e83;
/* rgb */ color: rgb(35, 62, 131);
/* oklch */ color: oklch(38.4% 0.121 265.1);

Tailwind

colors: {
  custom: {
    50: '#6b72a8',
    500: '#233e83',
    950: '#000000',
  },
}

SCSS

$custom: #233e83;
$custom-light: #6b72a8;
$custom-dark: #000000;

JSON

{
  "hex": "#233e83",
  "rgb": {
    "r": 35,
    "g": 62,
    "b": 131
  },
  "hsl": {
    "h": 223.125,
    "s": 57.831,
    "l": 32.549
  },
  "oklch": {
    "l": 0.38429,
    "c": 0.1208,
    "h": 265.1
  },
  "luminance": 0.05441
}

Semantic roles & 50–950 ramp

primary

#233E83

secondary

#B4974E

accent

#B647E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #233E83

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

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