#231E8F#231E8F

#231E8F is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.7% C 0.176 H 273.5°. Best body text is #FFFFFF at 12.70:1 contrast (WCAG AA passes).

Color values

HEX	#231E8F
RGB	rgb(35, 30, 143)
HSL	hsl(243, 65%, 34%)
HSV	hsv(243, 79%, 56%)
CMYK	cmyk(75.5%, 79%, 0%, 43.9%)
CIE-LAB	lab(21.09, 40.47, -60.59)
CIE-LCH	lch(21.09, 72.87, 303.74°)
OKLab	oklab(33.73% 0.0109 -0.1753)
OKLCH	oklch(33.73% 0.176 273.5)
XYZ	xyz(6.1137, 3.2684, 26.2899)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231E8F #8A8F1E

analogous

#1E528F #231E8F #5C1E8F

triadic

#231E8F #8F231E #1E8F23

tetradic

#231E8F #8F1E52 #8A8F1E #1E8F5C

square

#231E8F #8F1E52 #8A8F1E #1E8F5C

split-complementary

#231E8F #8F5C1E #528F1E

monochromatic

#0A092A #17135C #231E8F #2F29C2 #544EDA

Accessibility & contrast

On white

12.70

#231E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#231E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231E8F

12.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231E8F	#FFFFFF	#000000	##FFFFFF
##231E8F	1.00	12.70	1.65	12.70
#FFFFFF	12.70	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003892

Deuteranopia (green-blind)

#002D8D

Tritanopia (blue-blind)

#004056

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #231e8f;
/* rgb */ color: rgb(35, 30, 143);
/* oklch */ color: oklch(33.7% 0.176 273.5);

Tailwind

colors: {
  custom: {
    50: '#715cb1',
    500: '#231e8f',
    950: '#000000',
  },
}

SCSS

$custom: #231e8f;
$custom-light: #715cb1;
$custom-dark: #000000;

JSON

{
  "hex": "#231e8f",
  "rgb": {
    "r": 35,
    "g": 30,
    "b": 143
  },
  "hsl": {
    "h": 242.655,
    "s": 65.318,
    "l": 33.922
  },
  "oklch": {
    "l": 0.33727,
    "c": 0.17565,
    "h": 273.5
  },
  "luminance": 0.03269
}

Semantic roles & 50–950 ramp

primary

#231E8F

secondary

#B7BC4C

accent

#E840E1

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #231E8F

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

Preview Lab → · Contrast checker → · Palette generator →