#233183#233183

#233183 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.7% C 0.138 H 270.3°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#233183
RGB	rgb(35, 49, 131)
HSL	hsl(231, 58%, 33%)
HSV	hsv(231, 73%, 51%)
CMYK	cmyk(73.3%, 62.6%, 0%, 48.6%)
CIE-LAB	lab(24.30, 24.13, -47.82)
CIE-LCH	lch(24.30, 53.57, 296.78°)
OKLab	oklab(35.68% 0.0008 -0.138)
OKLCH	oklch(35.68% 0.138 270.3)
XYZ	xyz(5.8868, 4.1921, 21.9672)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233183 #837523

analogous

#236183 #233183 #452383

triadic

#233183 #832331 #318323

tetradic

#233183 #832361 #837523 #238345

square

#233183 #832361 #837523 #238345

split-complementary

#233183 #834523 #618323

monochromatic

#090D22 #161F53 #233183 #3043B3 #5063D0

Accessibility & contrast

On white

11.42

#233183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#233183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233183

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233183	#FFFFFF	#000000	##FFFFFF
##233183	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E86

Deuteranopia (green-blind)

#003581

Tritanopia (blue-blind)

#004655

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #233183;
/* rgb */ color: rgb(35, 49, 131);
/* oklch */ color: oklch(35.7% 0.138 270.3);

Tailwind

colors: {
  custom: {
    50: '#6c69a8',
    500: '#233183',
    950: '#000000',
  },
}

SCSS

$custom: #233183;
$custom-light: #6c69a8;
$custom-dark: #000000;

JSON

{
  "hex": "#233183",
  "rgb": {
    "r": 35,
    "g": 49,
    "b": 131
  },
  "hsl": {
    "h": 231.25,
    "s": 57.831,
    "l": 32.549
  },
  "oklch": {
    "l": 0.35681,
    "c": 0.13802,
    "h": 270.3
  },
  "luminance": 0.04193
}

Semantic roles & 50–950 ramp

primary

#233183

secondary

#B4A54E

accent

#CB47E1

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #233183

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

Preview Lab → · Contrast checker → · Palette generator →