#231D7E#231D7E

#231D7E is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.7% C 0.155 H 275.6°. Best body text is #FFFFFF at 13.56:1 contrast (WCAG AA passes).

Color values

HEX	#231D7E
RGB	rgb(35, 29, 126)
HSL	hsl(244, 63%, 30%)
HSV	hsv(244, 77%, 49%)
CMYK	cmyk(72.2%, 77%, 0%, 50.6%)
CIE-LAB	lab(18.98, 35.28, -53.39)
CIE-LCH	lch(18.98, 63.99, 303.46°)
OKLab	oklab(31.68% 0.0152 -0.1543)
OKLCH	oklch(31.68% 0.155 275.6)
XYZ	xyz(4.8972, 2.7420, 20.0058)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D7E #787E1D

analogous

#1D487E #231D7E #531D7E

triadic

#231D7E #7E231D #1D7E23

tetradic

#231D7E #7E1D48 #787E1D #1D7E53

square

#231D7E #7E1D48 #787E1D #1D7E53

split-complementary

#231D7E #7E531D #487E1D

monochromatic

#07061B #15124C #231D7E #3128B0 #4B42D3

Accessibility & contrast

On white

13.56

#231D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#231D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D7E

13.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D7E	#FFFFFF	#000000	##FFFFFF
##231D7E	1.00	13.56	1.55	13.56
#FFFFFF	13.56	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003281

Deuteranopia (green-blind)

#002A7C

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #231d7e;
/* rgb */ color: rgb(35, 29, 126);
/* oklch */ color: oklch(31.7% 0.155 275.6);

Tailwind

colors: {
  custom: {
    50: '#6d5ba4',
    500: '#231d7e',
    950: '#000000',
  },
}

SCSS

$custom: #231d7e;
$custom-light: #6d5ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#231d7e",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 126
  },
  "hsl": {
    "h": 243.711,
    "s": 62.581,
    "l": 30.392
  },
  "oklch": {
    "l": 0.31676,
    "c": 0.15509,
    "h": 275.6
  },
  "luminance": 0.02742
}

Semantic roles & 50–950 ramp

primary

#231D7E

secondary

#ABB145

accent

#E642DC

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #231D7E

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

Preview Lab → · Contrast checker → · Palette generator →