#231EA1#231EA1

#231EA1 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.8% C 0.197 H 271.9°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#231EA1
RGB	rgb(35, 30, 161)
HSL	hsl(242, 69%, 37%)
HSV	hsv(242, 81%, 63%)
CMYK	cmyk(78.3%, 81.4%, 0%, 36.9%)
CIE-LAB	lab(23.20, 46.34, -68.18)
CIE-LCH	lch(23.20, 82.44, 304.21°)
OKLab	oklab(35.82% 0.0067 -0.1973)
OKLCH	oklch(35.82% 0.197 271.9)
XYZ	xyz(7.5883, 3.8582, 34.0561)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231EA1 #9CA11E

analogous

#1E5BA1 #231EA1 #641EA1

triadic

#231EA1 #A1231E #1EA123

tetradic

#231EA1 #A11E5B #9CA11E #1EA164

square

#231EA1 #A11E5B #9CA11E #1EA164

split-complementary

#231EA1 #A1641E #5BA11E

monochromatic

#0D0B3A #18146D #231EA1 #2E28D5 #5E59E0

Accessibility & contrast

On white

11.85

#231EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#231EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231EA1

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231EA1	#FFFFFF	#000000	##FFFFFF
##231EA1	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA5

Deuteranopia (green-blind)

#00319F

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #231ea1;
/* rgb */ color: rgb(35, 30, 161);
/* oklch */ color: oklch(35.8% 0.197 271.9);

Tailwind

colors: {
  custom: {
    50: '#765dbe',
    500: '#231ea1',
    950: '#000000',
  },
}

SCSS

$custom: #231ea1;
$custom-light: #765dbe;
$custom-dark: #000000;

JSON

{
  "hex": "#231ea1",
  "rgb": {
    "r": 35,
    "g": 30,
    "b": 161
  },
  "hsl": {
    "h": 242.29,
    "s": 68.586,
    "l": 37.451
  },
  "oklch": {
    "l": 0.35816,
    "c": 0.19743,
    "h": 271.9
  },
  "luminance": 0.03859
}

Semantic roles & 50–950 ramp

primary

#231EA1

secondary

#C0C457

accent

#EB3CE5

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #231EA1

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

Preview Lab → · Contrast checker → · Palette generator →