#231C50#231C50

#231C50 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.9% C 0.092 H 284.5°. Best body text is #FFFFFF at 15.52:1 contrast (WCAG AA passes).

Color values

HEX	#231C50
RGB	rgb(35, 28, 80)
HSL	hsl(248, 48%, 21%)
HSV	hsv(248, 65%, 31%)
CMYK	cmyk(56.3%, 65%, 0%, 68.6%)
CIE-LAB	lab(14.21, 19.57, -30.95)
CIE-LCH	lch(14.21, 36.62, 302.30°)
OKLab	oklab(26.86% 0.023 -0.0886)
OKLCH	oklch(26.86% 0.092 284.5)
XYZ	xyz(2.5559, 1.7669, 7.7942)
Luminance	0.0177 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C50 #49501C

analogous

#1C2F50 #231C50 #3D1C50

triadic

#231C50 #50231C #1C5023

tetradic

#231C50 #501C2F #49501C #1C503D

square

#231C50 #501C2F #49501C #1C503D

split-complementary

#231C50 #503D1C #2F501C

monochromatic

#0A0817 #0F0C23 #231C50 #372C7D #4B3CAB

Accessibility & contrast

On white

15.52

#231C50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#231C50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C50

15.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C50	#FFFFFF	#000000	##FFFFFF
##231C50	1.00	15.52	1.35	15.52
#FFFFFF	15.52	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002652

Deuteranopia (green-blind)

#00224F

Tritanopia (blue-blind)

#122832

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #231c50;
/* rgb */ color: rgb(35, 28, 80);
/* oklch */ color: oklch(26.9% 0.092 284.5);

Tailwind

colors: {
  custom: {
    50: '#635881',
    500: '#231c50',
    950: '#000000',
  },
}

SCSS

$custom: #231c50;
$custom-light: #635881;
$custom-dark: #000000;

JSON

{
  "hex": "#231c50",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 80
  },
  "hsl": {
    "h": 248.077,
    "s": 48.148,
    "l": 21.176
  },
  "oklch": {
    "l": 0.26857,
    "c": 0.09155,
    "h": 284.5
  },
  "luminance": 0.01767
}

Semantic roles & 50–950 ramp

primary

#231C50

secondary

#7D8642

accent

#D850C5

background

#F6F5F7

surface

#EBE9EE

border

#C6C5C9

text

#05030A

muted

#7A787C

Preview Lab

Preview with #231C50

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

Preview Lab → · Contrast checker → · Palette generator →