#231D84#231D84

#231D84 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.3% C 0.163 H 274.9°. Best body text is #FFFFFF at 13.29:1 contrast (WCAG AA passes).

Color values

HEX	#231D84
RGB	rgb(35, 29, 132)
HSL	hsl(243, 64%, 32%)
HSV	hsv(243, 78%, 52%)
CMYK	cmyk(73.5%, 78%, 0%, 48.2%)
CIE-LAB	lab(19.64, 37.33, -56.09)
CIE-LCH	lch(19.64, 67.38, 303.65°)
OKLab	oklab(32.34% 0.0138 -0.1622)
OKLCH	oklch(32.34% 0.163 274.9)
XYZ	xyz(5.2960, 2.9015, 22.1063)
Luminance	0.0290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D84 #7E841D

analogous

#1D4B84 #231D84 #571D84

triadic

#231D84 #84231D #1D8423

tetradic

#231D84 #841D4B #7E841D #1D8457

square

#231D84 #841D4B #7E841D #1D8457

split-complementary

#231D84 #84571D #4B841D

monochromatic

#080720 #161252 #231D84 #3028B6 #4E45D6

Accessibility & contrast

On white

13.29

#231D84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#231D84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D84

13.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D84	#FFFFFF	#000000	##FFFFFF
##231D84	1.00	13.29	1.58	13.29
#FFFFFF	13.29	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003487

Deuteranopia (green-blind)

#002B82

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #231d84;
/* rgb */ color: rgb(35, 29, 132);
/* oklch */ color: oklch(32.3% 0.163 274.9);

Tailwind

colors: {
  custom: {
    50: '#6e5ba9',
    500: '#231d84',
    950: '#000000',
  },
}

SCSS

$custom: #231d84;
$custom-light: #6e5ba9;
$custom-dark: #000000;

JSON

{
  "hex": "#231d84",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 132
  },
  "hsl": {
    "h": 243.495,
    "s": 63.975,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32344,
    "c": 0.1628,
    "h": 274.9
  },
  "luminance": 0.02902
}

Semantic roles & 50–950 ramp

primary

#231D84

secondary

#B0B746

accent

#E741DD

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #231D84

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

Preview Lab → · Contrast checker → · Palette generator →