#231AA0#231AA0

#231AA0 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.2% C 0.199 H 272.3°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#231AA0
RGB	rgb(35, 26, 160)
HSL	hsl(244, 72%, 36%)
HSV	hsv(244, 84%, 63%)
CMYK	cmyk(78.1%, 83.8%, 0%, 37.3%)
CIE-LAB	lab(22.42, 47.95, -68.86)
CIE-LCH	lch(22.42, 83.91, 304.85°)
OKLab	oklab(35.24% 0.008 -0.1992)
OKLCH	oklch(35.24% 0.199 272.3)
XYZ	xyz(7.4056, 3.6334, 33.5619)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231AA0 #97A01A

analogous

#1A54A0 #231AA0 #661AA0

triadic

#231AA0 #A0231A #1AA023

tetradic

#231AA0 #A01A54 #97A01A #1AA066

square

#231AA0 #A01A54 #97A01A #1AA066

split-complementary

#231AA0 #A0661A #54A01A

monochromatic

#0C0937 #17116B #231AA0 #2F23D5 #5B52E3

Accessibility & contrast

On white

12.16

#231AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#231AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231AA0

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231AA0	#FFFFFF	#000000	##FFFFFF
##231AA0	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA4

Deuteranopia (green-blind)

#002F9E

Tritanopia (blue-blind)

#00455F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #231aa0;
/* rgb */ color: rgb(35, 26, 160);
/* oklch */ color: oklch(35.2% 0.199 272.3);

Tailwind

colors: {
  custom: {
    50: '#765bbe',
    500: '#231aa0',
    950: '#000000',
  },
}

SCSS

$custom: #231aa0;
$custom-light: #765bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#231aa0",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 160
  },
  "hsl": {
    "h": 244.03,
    "s": 72.043,
    "l": 36.471
  },
  "oklch": {
    "l": 0.35243,
    "c": 0.19937,
    "h": 272.3
  },
  "luminance": 0.03634
}

Semantic roles & 50–950 ramp

primary

#231AA0

secondary

#BEC550

accent

#EF39E3

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #231AA0

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

Preview Lab → · Contrast checker → · Palette generator →