#231D70#231D70

#231D70 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.2% C 0.137 H 277.6°. Best body text is #FFFFFF at 14.18:1 contrast (WCAG AA passes).

Color values

HEX	#231D70
RGB	rgb(35, 29, 112)
HSL	hsl(244, 59%, 28%)
HSV	hsv(244, 74%, 44%)
CMYK	cmyk(68.8%, 74.1%, 0%, 56.1%)
CIE-LAB	lab(17.49, 30.39, -46.87)
CIE-LCH	lch(17.49, 55.86, 302.96°)
OKLab	oklab(30.16% 0.018 -0.1353)
OKLCH	oklch(30.16% 0.137 277.6)
XYZ	xyz(4.0562, 2.4056, 15.5767)
Luminance	0.0241 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D70 #6A701D

analogous

#1D4170 #231D70 #4C1D70

triadic

#231D70 #70231D #1D7023

tetradic

#231D70 #701D41 #6A701D #1D704C

square

#231D70 #701D41 #6A701D #1D704C

split-complementary

#231D70 #704C1D #41701D

monochromatic

#080618 #14103F #231D70 #322AA1 #463BCC

Accessibility & contrast

On white

14.18

#231D70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#231D70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D70

14.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D70	#FFFFFF	#000000	##FFFFFF
##231D70	1.00	14.18	1.48	14.18
#FFFFFF	14.18	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E72

Deuteranopia (green-blind)

#00276E

Tritanopia (blue-blind)

#003444

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #231d70;
/* rgb */ color: rgb(35, 29, 112);
/* oklch */ color: oklch(30.2% 0.137 277.6);

Tailwind

colors: {
  custom: {
    50: '#695a9a',
    500: '#231d70',
    950: '#000000',
  },
}

SCSS

$custom: #231d70;
$custom-light: #695a9a;
$custom-dark: #000000;

JSON

{
  "hex": "#231d70",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 112
  },
  "hsl": {
    "h": 244.337,
    "s": 58.865,
    "l": 27.647
  },
  "oklch": {
    "l": 0.30164,
    "c": 0.1365,
    "h": 277.6
  },
  "luminance": 0.02406
}

Semantic roles & 50–950 ramp

primary

#231D70

secondary

#9DA444

accent

#E246D7

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #231D70

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

Preview Lab → · Contrast checker → · Palette generator →