#231D64#231D64

#231D64 is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.9% C 0.120 H 279.6°. Best body text is #FFFFFF at 14.67:1 contrast (WCAG AA passes).

Color values

HEX	#231D64
RGB	rgb(35, 29, 100)
HSL	hsl(245, 55%, 25%)
HSV	hsv(245, 71%, 39%)
CMYK	cmyk(65%, 71%, 0%, 60.8%)
CIE-LAB	lab(16.29, 26.10, -40.99)
CIE-LCH	lch(16.29, 48.60, 302.49°)
OKLab	oklab(28.93% 0.02 -0.1181)
OKLCH	oklch(28.93% 0.12 279.6)
XYZ	xyz(3.4320, 2.1559, 12.2894)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231D64 #5E641D

analogous

#1D3B64 #231D64 #461D64

triadic

#231D64 #64231D #1D6423

tetradic

#231D64 #641D3B #5E641D #1D6446

square

#231D64 #641D3B #5E641D #1D6446

split-complementary

#231D64 #64461D #3B641D

monochromatic

#080718 #120F35 #231D64 #342B93 #4439C3

Accessibility & contrast

On white

14.67

#231D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#231D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231D64

14.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231D64	#FFFFFF	#000000	##FFFFFF
##231D64	1.00	14.67	1.43	14.67
#FFFFFF	14.67	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B66

Deuteranopia (green-blind)

#002663

Tritanopia (blue-blind)

#002F3D

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #231d64;
/* rgb */ color: rgb(35, 29, 100);
/* oklch */ color: oklch(28.9% 0.120 279.6);

Tailwind

colors: {
  custom: {
    50: '#675991',
    500: '#231d64',
    950: '#000000',
  },
}

SCSS

$custom: #231d64;
$custom-light: #675991;
$custom-dark: #000000;

JSON

{
  "hex": "#231d64",
  "rgb": {
    "r": 35,
    "g": 29,
    "b": 100
  },
  "hsl": {
    "h": 245.07,
    "s": 55.039,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28934,
    "c": 0.11978,
    "h": 279.6
  },
  "luminance": 0.02156
}

Semantic roles & 50–950 ramp

primary

#231D64

secondary

#929944

accent

#DE49D2

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #231D64

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

Preview Lab → · Contrast checker → · Palette generator →