#231B45#231B45

#231B45 is a dark, moderate violet. Relative luminance 0.016; OKLCH L 25.7% C 0.076 H 288.7°. Best body text is #FFFFFF at 15.98:1 contrast (WCAG AA passes).

Color values

HEX	#231B45
RGB	rgb(35, 27, 69)
HSL	hsl(251, 44%, 19%)
HSV	hsv(251, 61%, 27%)
CMYK	cmyk(49.3%, 60.9%, 0%, 72.9%)
CIE-LAB	lab(13.05, 16.38, -25.24)
CIE-LCH	lch(13.05, 30.09, 302.98°)
OKLab	oklab(25.72% 0.0243 -0.0718)
OKLCH	oklch(25.72% 0.076 288.7)
XYZ	xyz(2.1589, 1.5708, 5.8185)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231B45 #3D451B

analogous

#1B2845 #231B45 #381B45

triadic

#231B45 #45231B #1B4523

tetradic

#231B45 #451B28 #3D451B #1B4538

square

#231B45 #451B28 #3D451B #1B4538

split-complementary

#231B45 #45381B #28451B

monochromatic

#0B0916 #0D0A19 #231B45 #392C71 #503D9D

Accessibility & contrast

On white

15.98

#231B45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#231B45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231B45

15.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231B45	#FFFFFF	#000000	##FFFFFF
##231B45	1.00	15.98	1.31	15.98
#FFFFFF	15.98	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#062346

Deuteranopia (green-blind)

#072144

Tritanopia (blue-blind)

#19242D

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #231b45;
/* rgb */ color: rgb(35, 27, 69);
/* oklch */ color: oklch(25.7% 0.076 288.7);

Tailwind

colors: {
  custom: {
    50: '#615779',
    500: '#231b45',
    950: '#000000',
  },
}

SCSS

$custom: #231b45;
$custom-light: #615779;
$custom-dark: #000000;

JSON

{
  "hex": "#231b45",
  "rgb": {
    "r": 35,
    "g": 27,
    "b": 69
  },
  "hsl": {
    "h": 251.429,
    "s": 43.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.25717,
    "c": 0.07583,
    "h": 288.7
  },
  "luminance": 0.01571
}

Semantic roles & 50–950 ramp

primary

#231B45

secondary

#707B41

accent

#D354BB

background

#F5F5F7

surface

#EAE9ED

border

#C6C5C8

text

#050309

muted

#79787B

Preview Lab

Preview with #231B45

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

Preview Lab → · Contrast checker → · Palette generator →