#231FA7#231FA7

#231FA7 is a dark, highly saturated blue. Relative luminance 0.041; OKLCH L 36.6% C 0.204 H 271.4°. Best body text is #FFFFFF at 11.50:1 contrast (WCAG AA passes).

Color values

HEX	#231FA7
RGB	rgb(35, 31, 167)
HSL	hsl(242, 69%, 39%)
HSV	hsv(242, 81%, 65%)
CMYK	cmyk(79%, 81.4%, 0%, 34.5%)
CIE-LAB	lab(24.09, 47.76, -70.35)
CIE-LCH	lch(24.09, 85.03, 304.17°)
OKLab	oklab(36.64% 0.005 -0.2036)
OKLCH	oklch(36.64% 0.204 271.4)
XYZ	xyz(8.1558, 4.1264, 36.9184)
Luminance	0.0413 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231FA7 #A3A71F

analogous

#1F5FA7 #231FA7 #671FA7

triadic

#231FA7 #A7231F #1FA723

tetradic

#231FA7 #A71F5F #A3A71F #1FA767

square

#231FA7 #A71F5F #A3A71F #1FA767

split-complementary

#231FA7 #A7671F #5FA71F

monochromatic

#0D0C40 #181573 #231FA7 #312BD8 #635FE1

Accessibility & contrast

On white

11.50

#231FA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#231FA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231FA7

11.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231FA7	#FFFFFF	#000000	##FFFFFF
##231FA7	1.00	11.50	1.83	11.50
#FFFFFF	11.50	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AB

Deuteranopia (green-blind)

#0032A5

Tritanopia (blue-blind)

#004A64

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #231fa7;
/* rgb */ color: rgb(35, 31, 167);
/* oklch */ color: oklch(36.6% 0.204 271.4);

Tailwind

colors: {
  custom: {
    50: '#775ec3',
    500: '#231fa7',
    950: '#000000',
  },
}

SCSS

$custom: #231fa7;
$custom-light: #775ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#231fa7",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 167
  },
  "hsl": {
    "h": 241.765,
    "s": 68.687,
    "l": 38.824
  },
  "oklch": {
    "l": 0.36641,
    "c": 0.20368,
    "h": 271.4
  },
  "luminance": 0.04127
}

Semantic roles & 50–950 ramp

primary

#231FA7

secondary

#C3C65C

accent

#EC3CE6

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #231FA7

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

Preview Lab → · Contrast checker → · Palette generator →