#18316D#18316D

#18316D is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.2% C 0.109 H 264.2°. Best body text is #FFFFFF at 12.36:1 contrast (WCAG AA passes).

Color values

HEX	#18316D
RGB	rgb(24, 49, 109)
HSL	hsl(222, 64%, 26%)
HSV	hsv(222, 78%, 43%)
CMYK	cmyk(78%, 55%, 0%, 57.3%)
CIE-LAB	lab(21.92, 13.78, -37.71)
CIE-LCH	lch(21.92, 40.15, 290.07°)
OKLab	oklab(33.18% -0.0109 -0.1085)
OKLCH	oklch(33.18% 0.109 264.2)
XYZ	xyz(4.2343, 3.4945, 14.9164)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18316D #6D5418

analogous

#185B6D #18316D #29186D

triadic

#18316D #6D1831 #316D18

tetradic

#18316D #6D185B #6D5418 #186D29

square

#18316D #6D185B #6D5418 #186D29

split-complementary

#18316D #6D2918 #5B6D18

monochromatic

#060B19 #0D1A3B #18316D #23489F #2E5ED1

Accessibility & contrast

On white

12.36

#18316D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#18316D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18316D

12.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18316D	#FFFFFF	#000000	##FFFFFF
##18316D	1.00	12.36	1.70	12.36
#FFFFFF	12.36	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08396F

Deuteranopia (green-blind)

#00316C

Tritanopia (blue-blind)

#003F4A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #18316d;
/* rgb */ color: rgb(24, 49, 109);
/* oklch */ color: oklch(33.2% 0.109 264.2);

Tailwind

colors: {
  custom: {
    50: '#626897',
    500: '#18316d',
    950: '#000000',
  },
}

SCSS

$custom: #18316d;
$custom-light: #626897;
$custom-dark: #000000;

JSON

{
  "hex": "#18316d",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 109
  },
  "hsl": {
    "h": 222.353,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.3318,
    "c": 0.10909,
    "h": 264.2
  },
  "luminance": 0.03495
}

Semantic roles & 50–950 ramp

primary

#18316D

secondary

#A3853E

accent

#B641E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #18316D

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

Preview Lab → · Contrast checker → · Palette generator →