#231D5F#231D5F

#231D5F is a dark, moderate blue. Relative luminance 0.021; OKLCH L 28.4% C 0.113 H 280.6°. Best body text is #FFFFFF at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#231D5F
RGB	rgb(35, 29, 95)
HSL	hsl(245, 53%, 24%)
HSV	hsv(245, 69%, 37%)
CMYK	cmyk(63.2%, 69.5%, 0%, 62.7%)
CIE-LAB	lab(15.81, 24.30, -38.46)
CIE-LCH	lch(15.81, 45.49, 302.28°)
OKLab	oklab(28.44% 0.0207 -0.1107)
OKLCH	oklch(28.44% 0.113 280.6)
XYZ	xyz(3.1974, 2.0621, 11.0538)
Luminance	0.0206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D5F #595F1D

analogous

#1D385F #231D5F #441D5F

triadic

#231D5F #5F231D #1D5F23

tetradic

#231D5F #5F1D38 #595F1D #1D5F44

square

#231D5F #5F1D38 #595F1D #1D5F44

split-complementary

#231D5F #5F441D #385F1D

monochromatic

#090717 #120F30 #231D5F #342B8E #463ABD

Accessibility & contrast

On white

14.87

#231D5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#231D5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D5F

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D5F	#FFFFFF	#000000	##FFFFFF
##231D5F	1.00	14.87	1.41	14.87
#FFFFFF	14.87	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A61

Deuteranopia (green-blind)

#00255E

Tritanopia (blue-blind)

#002E3B

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #231d5f;
/* rgb */ color: rgb(35, 29, 95);
/* oklch */ color: oklch(28.4% 0.113 280.6);

Tailwind

colors: {
  custom: {
    50: '#66598d',
    500: '#231d5f',
    950: '#000000',
  },
}

SCSS

$custom: #231d5f;
$custom-light: #66598d;
$custom-dark: #000000;

JSON

{
  "hex": "#231d5f",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 95
  },
  "hsl": {
    "h": 245.455,
    "s": 53.226,
    "l": 24.314
  },
  "oklch": {
    "l": 0.28442,
    "c": 0.11258,
    "h": 280.6
  },
  "luminance": 0.02062
}

Semantic roles & 50–950 ramp

primary

#231D5F

secondary

#8D9444

accent

#DD4BCF

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #231D5F

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

Preview Lab → · Contrast checker → · Palette generator →