#18235B#18235B

#18235B is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.4% C 0.101 H 270.3°. Best body text is #FFFFFF at 14.68:1 contrast (WCAG AA passes).

Color values

HEX	#18235B
RGB	rgb(24, 35, 91)
HSL	hsl(230, 58%, 23%)
HSV	hsv(230, 74%, 36%)
CMYK	cmyk(73.6%, 61.5%, 0%, 64.3%)
CIE-LAB	lab(16.26, 16.55, -35.09)
CIE-LCH	lch(16.26, 38.80, 295.26°)
OKLab	oklab(28.45% 0.0005 -0.1011)
OKLCH	oklch(28.45% 0.101 270.3)
XYZ	xyz(2.8654, 2.1513, 10.1597)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18235B #5B5018

analogous

#18455B #18235B #2E185B

triadic

#18235B #5B1823 #235B18

tetradic

#18235B #5B1845 #5B5018 #185B2E

square

#18235B #5B1845 #5B5018 #185B2E

split-complementary

#18235B #5B2E18 #455B18

monochromatic

#060918 #0B102B #18235B #25368B #3248BC

Accessibility & contrast

On white

14.68

#18235B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#18235B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18235B

14.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18235B	#FFFFFF	#000000	##FFFFFF
##18235B	1.00	14.68	1.43	14.68
#FFFFFF	14.68	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B5D

Deuteranopia (green-blind)

#00255A

Tritanopia (blue-blind)

#00313B

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #18235b;
/* rgb */ color: rgb(24, 35, 91);
/* oklch */ color: oklch(28.4% 0.101 270.3);

Tailwind

colors: {
  custom: {
    50: '#5f5d8a',
    500: '#18235b',
    950: '#000000',
  },
}

SCSS

$custom: #18235b;
$custom-light: #5f5d8a;
$custom-dark: #000000;

JSON

{
  "hex": "#18235b",
  "rgb": {
    "r": 24,
    "g": 35,
    "b": 91
  },
  "hsl": {
    "h": 230.149,
    "s": 58.261,
    "l": 22.549
  },
  "oklch": {
    "l": 0.28448,
    "c": 0.10106,
    "h": 270.3
  },
  "luminance": 0.02152
}

Semantic roles & 50–950 ramp

primary

#18235B

secondary

#92843D

accent

#C846E1

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #18235B

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

Preview Lab → · Contrast checker → · Palette generator →