#231A9F#231A9F

#231A9F is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.1% C 0.198 H 272.4°. Best body text is #FFFFFF at 12.21:1 contrast (WCAG AA passes).

Color values

HEX	#231A9F
RGB	rgb(35, 26, 159)
HSL	hsl(244, 72%, 36%)
HSV	hsv(244, 84%, 62%)
CMYK	cmyk(78%, 83.6%, 0%, 37.6%)
CIE-LAB	lab(22.30, 47.64, -68.45)
CIE-LCH	lch(22.30, 83.40, 304.84°)
OKLab	oklab(35.12% 0.0083 -0.198)
OKLCH	oklch(35.12% 0.198 272.4)
XYZ	xyz(7.3184, 3.5985, 33.1030)
Luminance	0.0360 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A9F #969F1A

analogous

#1A549F #231A9F #661A9F

triadic

#231A9F #9F231A #1A9F23

tetradic

#231A9F #9F1A54 #969F1A #1A9F66

square

#231A9F #9F1A54 #969F1A #1A9F66

split-complementary

#231A9F #9F661A #549F1A

monochromatic

#0C0936 #17116A #231A9F #2F23D4 #5B51E3

Accessibility & contrast

On white

12.21

#231A9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#231A9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A9F

12.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A9F	#FFFFFF	#000000	##FFFFFF
##231A9F	1.00	12.21	1.72	12.21
#FFFFFF	12.21	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA3

Deuteranopia (green-blind)

#002F9D

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #231a9f;
/* rgb */ color: rgb(35, 26, 159);
/* oklch */ color: oklch(35.1% 0.198 272.4);

Tailwind

colors: {
  custom: {
    50: '#755bbd',
    500: '#231a9f',
    950: '#000000',
  },
}

SCSS

$custom: #231a9f;
$custom-light: #755bbd;
$custom-dark: #000000;

JSON

{
  "hex": "#231a9f",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 159
  },
  "hsl": {
    "h": 244.06,
    "s": 71.892,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35122,
    "c": 0.19821,
    "h": 272.4
  },
  "luminance": 0.03599
}

Semantic roles & 50–950 ramp

primary

#231A9F

secondary

#BDC550

accent

#EF39E2

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #231A9F

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

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