#231787#231787

#231787 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.172 H 275.3°. Best body text is #FFFFFF at 13.60:1 contrast (WCAG AA passes).

Color values

HEX	#231787
RGB	rgb(35, 23, 135)
HSL	hsl(246, 71%, 31%)
HSV	hsv(246, 83%, 53%)
CMYK	cmyk(74.1%, 83%, 0%, 47.1%)
CIE-LAB	lab(18.88, 41.53, -59.24)
CIE-LCH	lch(18.88, 72.35, 305.03°)
OKLab	oklab(31.91% 0.0158 -0.1713)
OKLCH	oklch(31.91% 0.172 275.3)
XYZ	xyz(5.3713, 2.7189, 23.1587)
Luminance	0.0272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231787 #7B8717

analogous

#174387 #231787 #5B1787

triadic

#231787 #872317 #178723

tetradic

#231787 #871743 #7B8717 #17875B

square

#231787 #871743 #7B8717 #17875B

split-complementary

#231787 #875B17 #438717

monochromatic

#08051E #150E53 #231787 #3120BB #4C3BDE

Accessibility & contrast

On white

13.60

#231787 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#231787 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231787

13.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231787	#FFFFFF	#000000	##FFFFFF
##231787	1.00	13.60	1.54	13.60
#FFFFFF	13.60	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338A

Deuteranopia (green-blind)

#002985

Tritanopia (blue-blind)

#003A50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #231787;
/* rgb */ color: rgb(35, 23, 135);
/* oklch */ color: oklch(31.9% 0.172 275.3);

Tailwind

colors: {
  custom: {
    50: '#7058ab',
    500: '#231787',
    950: '#000000',
  },
}

SCSS

$custom: #231787;
$custom-light: #7058ab;
$custom-dark: #000000;

JSON

{
  "hex": "#231787",
  "rgb": {
    "r": 35,
    "g": 23,
    "b": 135
  },
  "hsl": {
    "h": 246.429,
    "s": 70.886,
    "l": 30.98
  },
  "oklch": {
    "l": 0.31912,
    "c": 0.17201,
    "h": 275.3
  },
  "luminance": 0.02719
}

Semantic roles & 50–950 ramp

primary

#231787

secondary

#AEBB3F

accent

#EE3ADA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #231787

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

Preview Lab → · Contrast checker → · Palette generator →