#18276C#18276C

#18276C is a dark, vivid blue. Relative luminance 0.027; OKLCH L 30.9% C 0.121 H 268.7°. Best body text is #FFFFFF at 13.59:1 contrast (WCAG AA passes).

Color values

HEX	#18276C
RGB	rgb(24, 39, 108)
HSL	hsl(229, 64%, 26%)
HSV	hsv(229, 78%, 42%)
CMYK	cmyk(77.8%, 63.9%, 0%, 57.6%)
CIE-LAB	lab(18.92, 20.58, -41.95)
CIE-LCH	lch(18.92, 46.73, 296.13°)
OKLab	oklab(30.9% -0.0027 -0.1212)
OKLCH	oklch(30.9% 0.121 268.7)
XYZ	xyz(3.8080, 2.7275, 14.5102)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18276C #6C5D18

analogous

#18516C #18276C #33186C

triadic

#18276C #6C1827 #276C18

tetradic

#18276C #6C1851 #6C5D18 #186C33

square

#18276C #6C1851 #6C5D18 #186C33

split-complementary

#18276C #6C3318 #516C18

monochromatic

#060919 #0D153A #18276C #23399E #2E4BD0

Accessibility & contrast

On white

13.59

#18276C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#18276C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18276C

13.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18276C	#FFFFFF	#000000	##FFFFFF
##18276C	1.00	13.59	1.55	13.59
#FFFFFF	13.59	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00326E

Deuteranopia (green-blind)

#002A6B

Tritanopia (blue-blind)

#003945

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #18276c;
/* rgb */ color: rgb(24, 39, 108);
/* oklch */ color: oklch(30.9% 0.121 268.7);

Tailwind

colors: {
  custom: {
    50: '#636097',
    500: '#18276c',
    950: '#000000',
  },
}

SCSS

$custom: #18276c;
$custom-light: #636097;
$custom-dark: #000000;

JSON

{
  "hex": "#18276c",
  "rgb": {
    "r": 24,
    "g": 39,
    "b": 108
  },
  "hsl": {
    "h": 229.286,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.30896,
    "c": 0.1212,
    "h": 268.7
  },
  "luminance": 0.02728
}

Semantic roles & 50–950 ramp

primary

#18276C

secondary

#A2903E

accent

#C941E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #18276C

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

Preview Lab → · Contrast checker → · Palette generator →