#18316E#18316E

#18316E is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.3% C 0.111 H 264.4°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#18316E
RGB	rgb(24, 49, 110)
HSL	hsl(223, 64%, 26%)
HSV	hsv(223, 78%, 43%)
CMYK	cmyk(78.2%, 55.5%, 0%, 56.9%)
CIE-LAB	lab(22.00, 14.20, -38.23)
CIE-LCH	lch(22.00, 40.78, 290.37°)
OKLab	oklab(33.26% -0.0108 -0.1101)
OKLCH	oklch(33.26% 0.111 264.4)
XYZ	xyz(4.2885, 3.5161, 15.2015)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18316E #6E5518

analogous

#185C6E #18316E #2A186E

triadic

#18316E #6E1831 #316E18

tetradic

#18316E #6E185C #6E5518 #186E2A

square

#18316E #6E185C #6E5518 #186E2A

split-complementary

#18316E #6E2A18 #5C6E18

monochromatic

#050B19 #0D1B3C #18316E #2347A0 #2F5ED2

Accessibility & contrast

On white

12.33

#18316E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#18316E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18316E

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18316E	#FFFFFF	#000000	##FFFFFF
##18316E	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#063970

Deuteranopia (green-blind)

#00316D

Tritanopia (blue-blind)

#00404A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #18316e;
/* rgb */ color: rgb(24, 49, 110);
/* oklch */ color: oklch(33.3% 0.111 264.4);

Tailwind

colors: {
  custom: {
    50: '#636898',
    500: '#18316e',
    950: '#000000',
  },
}

SCSS

$custom: #18316e;
$custom-light: #636898;
$custom-dark: #000000;

JSON

{
  "hex": "#18316e",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 110
  },
  "hsl": {
    "h": 222.558,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.33264,
    "c": 0.1106,
    "h": 264.4
  },
  "luminance": 0.03517
}

Semantic roles & 50–950 ramp

primary

#18316E

secondary

#A4863E

accent

#B741E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #18316E

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

Preview Lab → · Contrast checker → · Palette generator →