#18336E#18336E

#18336E is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.7% C 0.108 H 263.3°. Best body text is #FFFFFF at 12.09:1 contrast (WCAG AA passes).

Color values

HEX	#18336E
RGB	rgb(24, 51, 110)
HSL	hsl(221, 64%, 26%)
HSV	hsv(221, 78%, 43%)
CMYK	cmyk(78.2%, 53.6%, 0%, 56.9%)
CIE-LAB	lab(22.61, 12.76, -37.25)
CIE-LCH	lch(22.61, 39.38, 288.91°)
OKLab	oklab(33.73% -0.0126 -0.1071)
OKLCH	oklch(33.73% 0.108 263.3)
XYZ	xyz(4.3740, 3.6872, 15.2300)
Luminance	0.0369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18336E #6E5318

analogous

#185E6E #18336E #28186E

triadic

#18336E #6E1833 #336E18

tetradic

#18336E #6E185E #6E5318 #186E28

square

#18336E #6E185E #6E5318 #186E28

split-complementary

#18336E #6E2818 #5E6E18

monochromatic

#050C19 #0D1C3C #18336E #234AA0 #2F62D2

Accessibility & contrast

On white

12.09

#18336E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#18336E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18336E

12.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18336E	#FFFFFF	#000000	##FFFFFF
##18336E	1.00	12.09	1.74	12.09
#FFFFFF	12.09	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E3A70

Deuteranopia (green-blind)

#00326D

Tritanopia (blue-blind)

#00414B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #18336e;
/* rgb */ color: rgb(24, 51, 110);
/* oklch */ color: oklch(33.7% 0.108 263.3);

Tailwind

colors: {
  custom: {
    50: '#636a98',
    500: '#18336e',
    950: '#000000',
  },
}

SCSS

$custom: #18336e;
$custom-light: #636a98;
$custom-dark: #000000;

JSON

{
  "hex": "#18336e",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 110
  },
  "hsl": {
    "h": 221.163,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.33725,
    "c": 0.10788,
    "h": 263.3
  },
  "luminance": 0.03688
}

Semantic roles & 50–950 ramp

primary

#18336E

secondary

#A4843E

accent

#B341E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #18336E

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

Preview Lab → · Contrast checker → · Palette generator →