#231FA6#231FA6

#231FA6 is a dark, highly saturated blue. Relative luminance 0.041; OKLCH L 36.5% C 0.203 H 271.5°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#231FA6
RGB	rgb(35, 31, 166)
HSL	hsl(242, 69%, 39%)
HSV	hsv(242, 81%, 65%)
CMYK	cmyk(78.9%, 81.3%, 0%, 34.9%)
CIE-LAB	lab(23.97, 47.44, -69.94)
CIE-LCH	lch(23.97, 84.51, 304.15°)
OKLab	oklab(36.52% 0.0053 -0.2024)
OKLCH	oklch(36.52% 0.203 271.5)
XYZ	xyz(8.0637, 4.0896, 36.4334)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231FA6 #A2A61F

analogous

#1F5EA6 #231FA6 #661FA6

triadic

#231FA6 #A6231F #1FA623

tetradic

#231FA6 #A61F5E #A2A61F #1FA666

square

#231FA6 #A61F5E #A2A61F #1FA666

split-complementary

#231FA6 #A6661F #5EA61F

monochromatic

#0D0C3F #181572 #231FA6 #302BD7 #625EE1

Accessibility & contrast

On white

11.55

#231FA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#231FA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231FA6

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231FA6	#FFFFFF	#000000	##FFFFFF
##231FA6	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AA

Deuteranopia (green-blind)

#0032A4

Tritanopia (blue-blind)

#004A63

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #231fa6;
/* rgb */ color: rgb(35, 31, 166);
/* oklch */ color: oklch(36.5% 0.203 271.5);

Tailwind

colors: {
  custom: {
    50: '#775ec2',
    500: '#231fa6',
    950: '#000000',
  },
}

SCSS

$custom: #231fa6;
$custom-light: #775ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#231fa6",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 166
  },
  "hsl": {
    "h": 241.778,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.36523,
    "c": 0.20251,
    "h": 271.5
  },
  "luminance": 0.0409
}

Semantic roles & 50–950 ramp

primary

#231FA6

secondary

#C2C55B

accent

#EB3CE6

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0A0513

muted

#7C7982

Preview Lab

Preview with #231FA6

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

Preview Lab → · Contrast checker → · Palette generator →