#231D6B#231D6B

#231D6B is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.6% C 0.130 H 278.4°. Best body text is #FFFFFF at 14.39:1 contrast (WCAG AA passes).

Color values

HEX	#231D6B
RGB	rgb(35, 29, 107)
HSL	hsl(245, 57%, 27%)
HSV	hsv(245, 73%, 42%)
CMYK	cmyk(67.3%, 72.9%, 0%, 58%)
CIE-LAB	lab(16.98, 28.61, -44.45)
CIE-LCH	lch(16.98, 52.87, 302.77°)
OKLab	oklab(29.64% 0.0189 -0.1282)
OKLCH	oklch(29.64% 0.13 278.4)
XYZ	xyz(3.7855, 2.2973, 14.1510)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D6B #656B1D

analogous

#1D3E6B #231D6B #4A1D6B

triadic

#231D6B #6B231D #1D6B23

tetradic

#231D6B #6B1D3E #656B1D #1D6B4A

square

#231D6B #6B1D3E #656B1D #1D6B4A

split-complementary

#231D6B #6B4A1D #3E6B1D

monochromatic

#080718 #13103B #231D6B #332A9B #4439C9

Accessibility & contrast

On white

14.39

#231D6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#231D6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D6B

14.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D6B	#FFFFFF	#000000	##FFFFFF
##231D6B	1.00	14.39	1.46	14.39
#FFFFFF	14.39	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6D

Deuteranopia (green-blind)

#00276A

Tritanopia (blue-blind)

#003241

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #231d6b;
/* rgb */ color: rgb(35, 29, 107);
/* oklch */ color: oklch(29.6% 0.130 278.4);

Tailwind

colors: {
  custom: {
    50: '#685a96',
    500: '#231d6b',
    950: '#000000',
  },
}

SCSS

$custom: #231d6b;
$custom-light: #685a96;
$custom-dark: #000000;

JSON

{
  "hex": "#231d6b",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 107
  },
  "hsl": {
    "h": 244.615,
    "s": 57.353,
    "l": 26.667
  },
  "oklch": {
    "l": 0.29643,
    "c": 0.12964,
    "h": 278.4
  },
  "luminance": 0.02298
}

Semantic roles & 50–950 ramp

primary

#231D6B

secondary

#99A044

accent

#E147D5

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040D

muted

#7A797E

Preview Lab

Preview with #231D6B

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

Preview Lab → · Contrast checker → · Palette generator →