#231E73#231E73

#231E73 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.139 H 276.9°. Best body text is #FFFFFF at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#231E73
RGB	rgb(35, 30, 115)
HSL	hsl(244, 59%, 28%)
HSV	hsv(244, 74%, 45%)
CMYK	cmyk(69.6%, 73.9%, 0%, 54.9%)
CIE-LAB	lab(18.02, 30.83, -47.92)
CIE-LCH	lch(18.02, 56.98, 302.75°)
OKLab	oklab(30.64% 0.0167 -0.1384)
OKLCH	oklch(30.64% 0.139 276.9)
XYZ	xyz(4.2509, 2.5233, 16.4794)
Luminance	0.0252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231E73 #6E731E

analogous

#1E4373 #231E73 #4D1E73

triadic

#231E73 #73231E #1E7323

tetradic

#231E73 #731E43 #6E731E #1E734D

square

#231E73 #731E43 #6E731E #1E734D

split-complementary

#231E73 #734D1E #43731E

monochromatic

#070618 #141142 #231E73 #322BA4 #473FCD

Accessibility & contrast

On white

13.96

#231E73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#231E73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231E73

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231E73	#FFFFFF	#000000	##FFFFFF
##231E73	1.00	13.96	1.50	13.96
#FFFFFF	13.96	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003076

Deuteranopia (green-blind)

#002871

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #231e73;
/* rgb */ color: rgb(35, 30, 115);
/* oklch */ color: oklch(30.6% 0.139 276.9);

Tailwind

colors: {
  custom: {
    50: '#6a5b9c',
    500: '#231e73',
    950: '#000000',
  },
}

SCSS

$custom: #231e73;
$custom-light: #6a5b9c;
$custom-dark: #000000;

JSON

{
  "hex": "#231e73",
  "rgb": {
    "r": 35,
    "g": 30,
    "b": 115
  },
  "hsl": {
    "h": 243.529,
    "s": 58.621,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30643,
    "c": 0.13941,
    "h": 276.9
  },
  "luminance": 0.02524
}

Semantic roles & 50–950 ramp

primary

#231E73

secondary

#A1A746

accent

#E246D9

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #231E73

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

Preview Lab → · Contrast checker → · Palette generator →