#231AA8#231AA8

#231AA8 is a dark, highly saturated blue. Relative luminance 0.039; OKLCH L 36.2% C 0.209 H 271.7°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#231AA8
RGB	rgb(35, 26, 168)
HSL	hsl(244, 73%, 38%)
HSV	hsv(244, 85%, 66%)
CMYK	cmyk(79.2%, 84.5%, 0%, 34.1%)
CIE-LAB	lab(23.41, 50.40, -72.07)
CIE-LCH	lch(23.41, 87.95, 304.97°)
OKLab	oklab(36.21% 0.006 -0.2085)
OKLCH	oklch(36.21% 0.209 271.7)
XYZ	xyz(8.1280, 3.9224, 37.3669)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231AA8 #9FA81A

analogous

#1A58A8 #231AA8 #6A1AA8

triadic

#231AA8 #A8231A #1AA823

tetradic

#231AA8 #A81A58 #9FA81A #1AA86A

square

#231AA8 #A81A58 #9FA81A #1AA86A

split-complementary

#231AA8 #A86A1A #58A81A

monochromatic

#0D0A3E #181273 #231AA8 #2E22DD #6057E5

Accessibility & contrast

On white

11.77

#231AA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#231AA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231AA8

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231AA8	#FFFFFF	#000000	##FFFFFF
##231AA8	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EAC

Deuteranopia (green-blind)

#0031A6

Tritanopia (blue-blind)

#004964

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #231aa8;
/* rgb */ color: rgb(35, 26, 168);
/* oklch */ color: oklch(36.2% 0.209 271.7);

Tailwind

colors: {
  custom: {
    50: '#785cc3',
    500: '#231aa8',
    950: '#000000',
  },
}

SCSS

$custom: #231aa8;
$custom-light: #785cc3;
$custom-dark: #000000;

JSON

{
  "hex": "#231aa8",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 168
  },
  "hsl": {
    "h": 243.803,
    "s": 73.196,
    "l": 38.039
  },
  "oklch": {
    "l": 0.36211,
    "c": 0.2086,
    "h": 271.7
  },
  "luminance": 0.03923
}

Semantic roles & 50–950 ramp

primary

#231AA8

secondary

#C1C855

accent

#F038E4

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #231AA8

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

Preview Lab → · Contrast checker → · Palette generator →