#231A7B#231A7B

#231A7B is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.9% C 0.154 H 276.5°. Best body text is #FFFFFF at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#231A7B
RGB	rgb(35, 26, 123)
HSL	hsl(246, 65%, 29%)
HSV	hsv(246, 79%, 48%)
CMYK	cmyk(71.5%, 78.9%, 0%, 51.8%)
CIE-LAB	lab(18.03, 35.99, -53.04)
CIE-LCH	lch(18.03, 64.10, 304.16°)
OKLab	oklab(30.91% 0.0176 -0.1533)
OKLCH	oklch(30.91% 0.154 276.5)
XYZ	xyz(4.6365, 2.5258, 18.9782)
Luminance	0.0253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A7B #727B1A

analogous

#1A427B #231A7B #541A7B

triadic

#231A7B #7B231A #1A7B23

tetradic

#231A7B #7B1A42 #727B1A #1A7B54

square

#231A7B #7B1A42 #727B1A #1A7B54

split-complementary

#231A7B #7B541A #427B1A

monochromatic

#070519 #150F48 #231A7B #3125AE #483AD5

Accessibility & contrast

On white

13.95

#231A7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#231A7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A7B

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A7B	#FFFFFF	#000000	##FFFFFF
##231A7B	1.00	13.95	1.51	13.95
#FFFFFF	13.95	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307E

Deuteranopia (green-blind)

#002879

Tritanopia (blue-blind)

#003649

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #231a7b;
/* rgb */ color: rgb(35, 26, 123);
/* oklch */ color: oklch(30.9% 0.154 276.5);

Tailwind

colors: {
  custom: {
    50: '#6c59a2',
    500: '#231a7b',
    950: '#000000',
  },
}

SCSS

$custom: #231a7b;
$custom-light: #6c59a2;
$custom-dark: #000000;

JSON

{
  "hex": "#231a7b",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 123
  },
  "hsl": {
    "h": 245.567,
    "s": 65.101,
    "l": 29.216
  },
  "oklch": {
    "l": 0.3091,
    "c": 0.15429,
    "h": 276.5
  },
  "luminance": 0.02526
}

Semantic roles & 50–950 ramp

primary

#231A7B

secondary

#A5AF42

accent

#E840D8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #231A7B

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

Preview Lab → · Contrast checker → · Palette generator →