#231A74#231A74

#231A74 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.1% C 0.145 H 277.6°. Best body text is #FFFFFF at 14.27:1 contrast (WCAG AA passes).

Color values

HEX	#231A74
RGB	rgb(35, 26, 116)
HSL	hsl(246, 63%, 28%)
HSV	hsv(246, 78%, 45%)
CMYK	cmyk(69.8%, 77.6%, 0%, 54.5%)
CIE-LAB	lab(17.26, 33.61, -49.83)
CIE-LCH	lch(17.26, 60.10, 304.00°)
OKLab	oklab(30.13% 0.0192 -0.1439)
OKLCH	oklch(30.13% 0.145 277.6)
XYZ	xyz(4.2139, 2.3567, 16.7524)
Luminance	0.0236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A74 #6B741A

analogous

#1A3E74 #231A74 #501A74

triadic

#231A74 #74231A #1A7423

tetradic

#231A74 #741A3E #6B741A #1A7450

square

#231A74 #741A3E #6B741A #1A7450

split-complementary

#231A74 #74501A #3E741A

monochromatic

#080619 #140F42 #231A74 #3225A6 #4636D2

Accessibility & contrast

On white

14.27

#231A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#231A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A74

14.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A74	#FFFFFF	#000000	##FFFFFF
##231A74	1.00	14.27	1.47	14.27
#FFFFFF	14.27	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E77

Deuteranopia (green-blind)

#002772

Tritanopia (blue-blind)

#003445

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #231a74;
/* rgb */ color: rgb(35, 26, 116);
/* oklch */ color: oklch(30.1% 0.145 277.6);

Tailwind

colors: {
  custom: {
    50: '#6b589d',
    500: '#231a74',
    950: '#000000',
  },
}

SCSS

$custom: #231a74;
$custom-light: #6b589d;
$custom-dark: #000000;

JSON

{
  "hex": "#231a74",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 116
  },
  "hsl": {
    "h": 246,
    "s": 63.38,
    "l": 27.843
  },
  "oklch": {
    "l": 0.3013,
    "c": 0.14522,
    "h": 277.6
  },
  "luminance": 0.02357
}

Semantic roles & 50–950 ramp

primary

#231A74

secondary

#9EA941

accent

#E641D6

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #231A74

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

Preview Lab → · Contrast checker → · Palette generator →