#231A8B#231A8B

#231A8B is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.7% C 0.174 H 274.4°. Best body text is #FFFFFF at 13.19:1 contrast (WCAG AA passes).

Color values

HEX	#231A8B
RGB	rgb(35, 26, 139)
HSL	hsl(245, 68%, 32%)
HSV	hsv(245, 81%, 55%)
CMYK	cmyk(74.8%, 81.3%, 0%, 45.5%)
CIE-LAB	lab(19.88, 41.29, -60.10)
CIE-LCH	lch(19.88, 72.92, 304.49°)
OKLab	oklab(32.75% 0.0135 -0.1738)
OKLCH	oklch(32.75% 0.174 274.4)
XYZ	xyz(5.7212, 2.9596, 24.6908)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A8B #828B1A

analogous

#1A498B #231A8B #5C1A8B

triadic

#231A8B #8B231A #1A8B23

tetradic

#231A8B #8B1A49 #828B1A #1A8B5C

square

#231A8B #8B1A49 #828B1A #1A8B5C

split-complementary

#231A8B #8B5C1A #498B1A

monochromatic

#090724 #161057 #231A8B #3024BF #5043DC

Accessibility & contrast

On white

13.19

#231A8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#231A8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A8B

13.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A8B	#FFFFFF	#000000	##FFFFFF
##231A8B	1.00	13.19	1.59	13.19
#FFFFFF	13.19	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358E

Deuteranopia (green-blind)

#002B89

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #231a8b;
/* rgb */ color: rgb(35, 26, 139);
/* oklch */ color: oklch(32.7% 0.174 274.4);

Tailwind

colors: {
  custom: {
    50: '#705aae',
    500: '#231a8b',
    950: '#000000',
  },
}

SCSS

$custom: #231a8b;
$custom-light: #705aae;
$custom-dark: #000000;

JSON

{
  "hex": "#231a8b",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 139
  },
  "hsl": {
    "h": 244.779,
    "s": 68.485,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32747,
    "c": 0.17433,
    "h": 274.4
  },
  "luminance": 0.0296
}

Semantic roles & 50–950 ramp

primary

#231A8B

secondary

#B3BD44

accent

#EB3CDD

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #231A8B

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

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