#231FAA#231FAA

#231FAA is a dark, highly saturated blue. Relative luminance 0.042; OKLCH L 37.0% C 0.207 H 271.2°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#231FAA
RGB	rgb(35, 31, 170)
HSL	hsl(242, 69%, 39%)
HSV	hsv(242, 82%, 67%)
CMYK	cmyk(79.4%, 81.8%, 0%, 33.3%)
CIE-LAB	lab(24.45, 48.70, -71.57)
CIE-LCH	lch(24.45, 86.57, 304.24°)
OKLab	oklab(36.99% 0.0044 -0.2071)
OKLCH	oklch(36.99% 0.207 271.2)
XYZ	xyz(8.4364, 4.2386, 38.3959)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231FAA #A6AA1F

analogous

#1F60AA #231FAA #691FAA

triadic

#231FAA #AA231F #1FAA23

tetradic

#231FAA #AA1F60 #A6AA1F #1FAA69

square

#231FAA #AA1F60 #A6AA1F #1FAA69

split-complementary

#231FAA #AA691F #60AA1F

monochromatic

#0E0C42 #181676 #231FAA #322DD9 #6561E2

Accessibility & contrast

On white

11.36

#231FAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#231FAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231FAA

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231FAA	#FFFFFF	#000000	##FFFFFF
##231FAA	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041AE

Deuteranopia (green-blind)

#0033A8

Tritanopia (blue-blind)

#004B66

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #231faa;
/* rgb */ color: rgb(35, 31, 170);
/* oklch */ color: oklch(37.0% 0.207 271.2);

Tailwind

colors: {
  custom: {
    50: '#785fc5',
    500: '#231faa',
    950: '#000000',
  },
}

SCSS

$custom: #231faa;
$custom-light: #785fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#231faa",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 170
  },
  "hsl": {
    "h": 241.727,
    "s": 69.154,
    "l": 39.412
  },
  "oklch": {
    "l": 0.36995,
    "c": 0.20719,
    "h": 271.2
  },
  "luminance": 0.0424
}

Semantic roles & 50–950 ramp

primary

#231FAA

secondary

#C4C75E

accent

#EC3CE7

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #231FAA

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

Preview Lab → · Contrast checker → · Palette generator →