#231E4A#231E4A

#231E4A is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.8% C 0.079 H 284.9°. Best body text is #FFFFFF at 15.49:1 contrast (WCAG AA passes).

Color values

HEX	#231E4A
RGB	rgb(35, 30, 74)
HSL	hsl(247, 42%, 20%)
HSV	hsv(247, 59%, 29%)
CMYK	cmyk(52.7%, 59.5%, 0%, 71%)
CIE-LAB	lab(14.29, 15.99, -26.72)
CIE-LCH	lch(14.29, 31.14, 300.90°)
OKLab	oklab(26.76% 0.0203 -0.0761)
OKLCH	oklch(26.76% 0.079 284.9)
XYZ	xyz(2.3931, 1.7802, 6.6948)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231E4A #454A1E

analogous

#1E2F4A #231E4A #391E4A

triadic

#231E4A #4A231E #1E4A23

tetradic

#231E4A #4A1E2F #454A1E #1E4A39

square

#231E4A #4A1E2F #454A1E #1E4A39

split-complementary

#231E4A #4A391E #2F4A1E

monochromatic

#0A0916 #0E0C1E #231E4A #383076 #4C41A1

Accessibility & contrast

On white

15.49

#231E4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#231E4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231E4A

15.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231E4A	#FFFFFF	#000000	##FFFFFF
##231E4A	1.00	15.49	1.36	15.49
#FFFFFF	15.49	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07254C

Deuteranopia (green-blind)

#062349

Tritanopia (blue-blind)

#162830

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #231e4a;
/* rgb */ color: rgb(35, 30, 74);
/* oklch */ color: oklch(26.8% 0.079 284.9);

Tailwind

colors: {
  custom: {
    50: '#61597d',
    500: '#231e4a',
    950: '#000000',
  },
}

SCSS

$custom: #231e4a;
$custom-light: #61597d;
$custom-dark: #000000;

JSON

{
  "hex": "#231e4a",
  "rgb": {
    "r": 35,
    "g": 30,
    "b": 74
  },
  "hsl": {
    "h": 246.818,
    "s": 42.308,
    "l": 20.392
  },
  "oklch": {
    "l": 0.2676,
    "c": 0.0788,
    "h": 284.9
  },
  "luminance": 0.0178
}

Semantic roles & 50–950 ramp

primary

#231E4A

secondary

#787F45

accent

#D256C4

background

#F5F5F7

surface

#EAE9EE

border

#C6C5C9

text

#050309

muted

#79787B

Preview Lab

Preview with #231E4A

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

Preview Lab → · Contrast checker → · Palette generator →