#231A7D#231A7D

#231A7D is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.1% C 0.157 H 276.2°. Best body text is #FFFFFF at 13.86:1 contrast (WCAG AA passes).

Color values

HEX	#231A7D
RGB	rgb(35, 26, 125)
HSL	hsl(245, 66%, 30%)
HSV	hsv(245, 79%, 49%)
CMYK	cmyk(72%, 79.2%, 0%, 51%)
CIE-LAB	lab(18.26, 36.67, -53.94)
CIE-LCH	lch(18.26, 65.22, 304.20°)
OKLab	oklab(31.14% 0.0171 -0.1559)
OKLCH	oklch(31.14% 0.157 276.2)
XYZ	xyz(4.7630, 2.5763, 19.6443)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A7D #747D1A

analogous

#1A427D #231A7D #551A7D

triadic

#231A7D #7D231A #1A7D23

tetradic

#231A7D #7D1A42 #747D1A #1A7D55

square

#231A7D #7D1A42 #747D1A #1A7D55

split-complementary

#231A7D #7D551A #427D1A

monochromatic

#070519 #150F4A #231A7D #3125B0 #493BD6

Accessibility & contrast

On white

13.86

#231A7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#231A7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A7D

13.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A7D	#FFFFFF	#000000	##FFFFFF
##231A7D	1.00	13.86	1.52	13.86
#FFFFFF	13.86	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003180

Deuteranopia (green-blind)

#00287B

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #231a7d;
/* rgb */ color: rgb(35, 26, 125);
/* oklch */ color: oklch(31.1% 0.157 276.2);

Tailwind

colors: {
  custom: {
    50: '#6d59a4',
    500: '#231a7d',
    950: '#000000',
  },
}

SCSS

$custom: #231a7d;
$custom-light: #6d59a4;
$custom-dark: #000000;

JSON

{
  "hex": "#231a7d",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 125
  },
  "hsl": {
    "h": 245.455,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.31135,
    "c": 0.15685,
    "h": 276.2
  },
  "luminance": 0.02577
}

Semantic roles & 50–950 ramp

primary

#231A7D

secondary

#A7B142

accent

#E93FD9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #231A7D

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

Preview Lab → · Contrast checker → · Palette generator →