#231E81#231E81

#231E81 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.2% C 0.158 H 275.1°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#231E81
RGB	rgb(35, 30, 129)
HSL	hsl(243, 62%, 31%)
HSV	hsv(243, 77%, 51%)
CMYK	cmyk(72.9%, 76.7%, 0%, 49.4%)
CIE-LAB	lab(19.52, 35.72, -54.41)
CIE-LCH	lch(19.52, 65.09, 303.29°)
OKLab	oklab(32.15% 0.0139 -0.1573)
OKLCH	oklch(32.15% 0.158 275.1)
XYZ	xyz(5.1185, 2.8704, 21.0489)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231E81 #7C811E

analogous

#1E4A81 #231E81 #541E81

triadic

#231E81 #81231E #1E8123

tetradic

#231E81 #811E4A #7C811E #1E8154

square

#231E81 #811E4A #7C811E #1E8154

split-complementary

#231E81 #81541E #4A811E

monochromatic

#08071E #16124F #231E81 #302AB3 #4D46D4

Accessibility & contrast

On white

13.34

#231E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#231E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231E81

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231E81	#FFFFFF	#000000	##FFFFFF
##231E81	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003484

Deuteranopia (green-blind)

#002B7F

Tritanopia (blue-blind)

#003B4E

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #231e81;
/* rgb */ color: rgb(35, 30, 129);
/* oklch */ color: oklch(32.2% 0.158 275.1);

Tailwind

colors: {
  custom: {
    50: '#6e5ba7',
    500: '#231e81',
    950: '#000000',
  },
}

SCSS

$custom: #231e81;
$custom-light: #6e5ba7;
$custom-dark: #000000;

JSON

{
  "hex": "#231e81",
  "rgb": {
    "r": 35,
    "g": 30,
    "b": 129
  },
  "hsl": {
    "h": 243.03,
    "s": 62.264,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32154,
    "c": 0.15793,
    "h": 275.1
  },
  "luminance": 0.02871
}

Semantic roles & 50–950 ramp

primary

#231E81

secondary

#AFB447

accent

#E542DD

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #231E81

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

Preview Lab → · Contrast checker → · Palette generator →