#231F7E#231F7E

#231F7E is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.0% C 0.153 H 275.2°. Best body text is #FFFFFF at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#231F7E
RGB	rgb(35, 31, 126)
HSL	hsl(243, 61%, 31%)
HSV	hsv(243, 75%, 49%)
CMYK	cmyk(72.2%, 75.4%, 0%, 50.6%)
CIE-LAB	lab(19.40, 34.09, -52.69)
CIE-LCH	lch(19.40, 62.75, 302.90°)
OKLab	oklab(31.98% 0.014 -0.1523)
OKLCH	oklch(31.98% 0.153 275.2)
XYZ	xyz(4.9478, 2.8432, 20.0227)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231F7E #7A7E1F

analogous

#1F4A7E #231F7E #521F7E

triadic

#231F7E #7E231F #1F7E23

tetradic

#231F7E #7E1F4A #7A7E1F #1F7E52

square

#231F7E #7E1F4A #7A7E1F #1F7E52

split-complementary

#231F7E #7E521F #4A7E1F

monochromatic

#08071C #15134D #231F7E #312BAF #4C46D1

Accessibility & contrast

On white

13.39

#231F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#231F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231F7E

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231F7E	#FFFFFF	#000000	##FFFFFF
##231F7E	1.00	13.39	1.57	13.39
#FFFFFF	13.39	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003381

Deuteranopia (green-blind)

#002B7C

Tritanopia (blue-blind)

#003A4C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #231f7e;
/* rgb */ color: rgb(35, 31, 126);
/* oklch */ color: oklch(32.0% 0.153 275.2);

Tailwind

colors: {
  custom: {
    50: '#6d5ca4',
    500: '#231f7e',
    950: '#000000',
  },
}

SCSS

$custom: #231f7e;
$custom-light: #6d5ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#231f7e",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 126
  },
  "hsl": {
    "h": 242.526,
    "s": 60.51,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31977,
    "c": 0.15296,
    "h": 275.2
  },
  "luminance": 0.02844
}

Semantic roles & 50–950 ramp

primary

#231F7E

secondary

#ADB148

accent

#E444DD

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #231F7E

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

Preview Lab → · Contrast checker → · Palette generator →