#231788#231788

#231788 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 32.0% C 0.173 H 275.1°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#231788
RGB	rgb(35, 23, 136)
HSL	hsl(246, 71%, 31%)
HSV	hsv(246, 83%, 53%)
CMYK	cmyk(74.3%, 83.1%, 0%, 46.7%)
CIE-LAB	lab(19.00, 41.84, -59.67)
CIE-LCH	lch(19.00, 72.88, 305.04°)
OKLab	oklab(32.03% 0.0155 -0.1725)
OKLCH	oklch(32.03% 0.173 275.1)
XYZ	xyz(5.4420, 2.7472, 23.5312)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231788 #7C8817

analogous

#174388 #231788 #5B1788

triadic

#231788 #882317 #178823

tetradic

#231788 #881743 #7C8817 #17885B

square

#231788 #881743 #7C8817 #17885B

split-complementary

#231788 #885B17 #438817

monochromatic

#08051F #160E54 #231788 #3020BC #4D3BDE

Accessibility & contrast

On white

13.55

#231788 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#231788 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231788

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231788	#FFFFFF	#000000	##FFFFFF
##231788	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338B

Deuteranopia (green-blind)

#002986

Tritanopia (blue-blind)

#003A50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #231788;
/* rgb */ color: rgb(35, 23, 136);
/* oklch */ color: oklch(32.0% 0.173 275.1);

Tailwind

colors: {
  custom: {
    50: '#7058ac',
    500: '#231788',
    950: '#000000',
  },
}

SCSS

$custom: #231788;
$custom-light: #7058ac;
$custom-dark: #000000;

JSON

{
  "hex": "#231788",
  "rgb": {
    "r": 35,
    "g": 23,
    "b": 136
  },
  "hsl": {
    "h": 246.372,
    "s": 71.069,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32031,
    "c": 0.17323,
    "h": 275.1
  },
  "luminance": 0.02748
}

Semantic roles & 50–950 ramp

primary

#231788

secondary

#AFBC3F

accent

#EE3ADB

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #231788

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

Preview Lab → · Contrast checker → · Palette generator →