#18237E#18237E

#18237E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.0% C 0.151 H 269.5°. Best body text is #FFFFFF at 13.29:1 contrast (WCAG AA passes).

Color values

HEX	#18237E
RGB	rgb(24, 35, 126)
HSL	hsl(234, 68%, 29%)
HSV	hsv(234, 81%, 49%)
CMYK	cmyk(81%, 72.2%, 0%, 50.6%)
CIE-LAB	lab(19.65, 30.42, -52.31)
CIE-LCH	lch(19.65, 60.51, 300.18°)
OKLab	oklab(31.97% -0.0013 -0.1515)
OKLCH	oklch(31.97% 0.152 269.5)
XYZ	xyz(4.7423, 2.9021, 20.0448)
Luminance	0.0290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18237E #7E7318

analogous

#18567E #18237E #40187E

triadic

#18237E #7E1823 #237E18

tetradic

#18237E #7E1856 #7E7318 #187E40

square

#18237E #7E1856 #7E7318 #187E40

split-complementary

#18237E #7E4018 #567E18

monochromatic

#05071A #0E154B #18237E #2231B1 #3749D9

Accessibility & contrast

On white

13.29

#18237E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#18237E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18237E

13.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18237E	#FFFFFF	#000000	##FFFFFF
##18237E	1.00	13.29	1.58	13.29
#FFFFFF	13.29	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003481

Deuteranopia (green-blind)

#002B7C

Tritanopia (blue-blind)

#003C4D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #18237e;
/* rgb */ color: rgb(24, 35, 126);
/* oklch */ color: oklch(32.0% 0.151 269.5);

Tailwind

colors: {
  custom: {
    50: '#685ea4',
    500: '#18237e',
    950: '#000000',
  },
}

SCSS

$custom: #18237e;
$custom-light: #685ea4;
$custom-dark: #000000;

JSON

{
  "hex": "#18237e",
  "rgb": {
    "r": 24,
    "g": 35,
    "b": 126
  },
  "hsl": {
    "h": 233.529,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31971,
    "c": 0.1515,
    "h": 269.5
  },
  "luminance": 0.02903
}

Semantic roles & 50–950 ramp

primary

#18237E

secondary

#B2A63F

accent

#D83DEB

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #18237E

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

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