#18263B#18263B

#18263B is a dark, muted blue. Relative luminance 0.019; OKLCH L 26.7% C 0.044 H 258.3°. Best body text is #FFFFFF at 15.23:1 contrast (WCAG AA passes).

Color values

HEX	#18263B
RGB	rgb(24, 38, 59)
HSL	hsl(216, 42%, 16%)
HSV	hsv(216, 59%, 23%)
CMYK	cmyk(59.3%, 35.6%, 0%, 76.9%)
CIE-LAB	lab(14.93, 1.39, -15.33)
CIE-LCH	lch(14.93, 15.39, 275.18°)
OKLab	oklab(26.7% -0.0089 -0.0431)
OKLCH	oklch(26.7% 0.044 258.3)
XYZ	xyz(1.8590, 1.8960, 4.4048)
Luminance	0.0190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18263B #3B2D18

analogous

#18383B #18263B #1C183B

triadic

#18263B #3B1826 #263B18

tetradic

#18263B #3B1838 #3B2D18 #183B1C

square

#18263B #3B1838 #3B2D18 #183B1C

split-complementary

#18263B #3B1C18 #383B18

monochromatic

#090E16 #090E16 #18263B #2A4267 #3B5E92

Accessibility & contrast

On white

15.23

#18263B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#18263B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18263B

15.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18263B	#FFFFFF	#000000	##FFFFFF
##18263B	1.00	15.23	1.38	15.23
#FFFFFF	15.23	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E273C

Deuteranopia (green-blind)

#1A243B

Tritanopia (blue-blind)

#072B2D

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #18263b;
/* rgb */ color: rgb(24, 38, 59);
/* oklch */ color: oklch(26.7% 0.044 258.3);

Tailwind

colors: {
  custom: {
    50: '#586071',
    500: '#18263b',
    950: '#000000',
  },
}

SCSS

$custom: #18263b;
$custom-light: #586071;
$custom-dark: #000000;

JSON

{
  "hex": "#18263b",
  "rgb": {
    "r": 24,
    "g": 38,
    "b": 59
  },
  "hsl": {
    "h": 216,
    "s": 42.169,
    "l": 16.275
  },
  "oklch": {
    "l": 0.26696,
    "c": 0.04399,
    "h": 258.3
  },
  "luminance": 0.01896
}

Semantic roles & 50–950 ramp

primary

#18263B

secondary

#715D3E

accent

#A056D2

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030407

muted

#78797A

Preview Lab

Preview with #18263B

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

Preview Lab → · Contrast checker → · Palette generator →