#231D4F#231D4F

#231D4F is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.0% C 0.088 H 284.2°. Best body text is #FFFFFF at 15.44:1 contrast (WCAG AA passes).

Color values

HEX	#231D4F
RGB	rgb(35, 29, 79)
HSL	hsl(247, 46%, 21%)
HSV	hsv(247, 63%, 31%)
CMYK	cmyk(55.7%, 63.3%, 0%, 69%)
CIE-LAB	lab(14.40, 18.51, -29.96)
CIE-LCH	lch(14.40, 35.22, 301.70°)
OKLab	oklab(26.97% 0.0217 -0.0857)
OKLCH	oklch(26.97% 0.088 284.2)
XYZ	xyz(2.5434, 1.8004, 7.6091)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D4F #494F1D

analogous

#1D304F #231D4F #3C1D4F

triadic

#231D4F #4F231D #1D4F23

tetradic

#231D4F #4F1D30 #494F1D #1D4F3C

square

#231D4F #4F1D30 #494F1D #1D4F3C

split-complementary

#231D4F #4F3C1D #304F1D

monochromatic

#0A0816 #0F0D22 #231D4F #372D7C #4B3EA9

Accessibility & contrast

On white

15.44

#231D4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#231D4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D4F

15.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D4F	#FFFFFF	#000000	##FFFFFF
##231D4F	1.00	15.44	1.36	15.44
#FFFFFF	15.44	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002651

Deuteranopia (green-blind)

#00234E

Tritanopia (blue-blind)

#122832

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #231d4f;
/* rgb */ color: rgb(35, 29, 79);
/* oklch */ color: oklch(27.0% 0.088 284.2);

Tailwind

colors: {
  custom: {
    50: '#625981',
    500: '#231d4f',
    950: '#000000',
  },
}

SCSS

$custom: #231d4f;
$custom-light: #625981;
$custom-dark: #000000;

JSON

{
  "hex": "#231d4f",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 79
  },
  "hsl": {
    "h": 247.2,
    "s": 46.296,
    "l": 21.176
  },
  "oklch": {
    "l": 0.26971,
    "c": 0.08841,
    "h": 284.2
  },
  "luminance": 0.01801
}

Semantic roles & 50–950 ramp

primary

#231D4F

secondary

#7D8444

accent

#D652C6

background

#F6F5F7

surface

#EBE9EE

border

#C6C5C9

text

#05030A

muted

#7A787C

Preview Lab

Preview with #231D4F

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

Preview Lab → · Contrast checker → · Palette generator →