#231C4E#231C4E

#231C4E is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.7% C 0.088 H 285.1°. Best body text is #FFFFFF at 15.58:1 contrast (WCAG AA passes).

Color values

HEX	#231C4E
RGB	rgb(35, 28, 78)
HSL	hsl(248, 47%, 21%)
HSV	hsv(248, 64%, 31%)
CMYK	cmyk(55.1%, 64.1%, 0%, 69.4%)
CIE-LAB	lab(14.05, 18.85, -29.85)
CIE-LCH	lch(14.05, 35.31, 302.27°)
OKLab	oklab(26.68% 0.023 -0.0854)
OKLCH	oklch(26.68% 0.088 285.1)
XYZ	xyz(2.4831, 1.7378, 7.4108)
Luminance	0.0174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.41

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231C4E #474E1C

analogous

#1C2E4E #231C4E #3C1C4E

triadic

#231C4E #4E231C #1C4E23

tetradic

#231C4E #4E1C2E #474E1C #1C4E3C

square

#231C4E #4E1C2E #474E1C #1C4E3C

split-complementary

#231C4E #4E3C1C #2E4E1C

monochromatic

#0A0817 #0F0C21 #231C4E #372C7B #4B3CA8

Accessibility & contrast

On white

15.58

#231C4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#231C4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231C4E

15.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231C4E	#FFFFFF	#000000	##FFFFFF
##231C4E	1.00	15.58	1.35	15.58
#FFFFFF	15.58	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002550

Deuteranopia (green-blind)

#00224D

Tritanopia (blue-blind)

#132731

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #231c4e;
/* rgb */ color: rgb(35, 28, 78);
/* oklch */ color: oklch(26.7% 0.088 285.1);

Tailwind

colors: {
  custom: {
    50: '#625880',
    500: '#231c4e',
    950: '#000000',
  },
}

SCSS

$custom: #231c4e;
$custom-light: #625880;
$custom-dark: #000000;

JSON

{
  "hex": "#231c4e",
  "rgb": {
    "r": 35,
    "g": 28,
    "b": 78
  },
  "hsl": {
    "h": 248.4,
    "s": 47.17,
    "l": 20.784
  },
  "oklch": {
    "l": 0.26682,
    "c": 0.08844,
    "h": 285.1
  },
  "luminance": 0.01738
}

Semantic roles & 50–950 ramp

primary

#231C4E

secondary

#7A8442

accent

#D751C4

background

#F6F5F7

surface

#EBE9EE

border

#C6C5C9

text

#05030A

muted

#7A787C

Preview Lab

Preview with #231C4E

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

Preview Lab → · Contrast checker → · Palette generator →