#18273F#18273F

#18273F is a dark, muted blue. Relative luminance 0.020; OKLCH L 27.2% C 0.049 H 259.5°. Best body text is #FFFFFF at 14.99:1 contrast (WCAG AA passes).

Color values

HEX	#18273F
RGB	rgb(24, 39, 63)
HSL	hsl(217, 45%, 17%)
HSV	hsv(217, 62%, 25%)
CMYK	cmyk(61.9%, 38.1%, 0%, 75.3%)
CIE-LAB	lab(15.51, 2.21, -17.21)
CIE-LCH	lch(15.51, 17.36, 277.30°)
OKLab	oklab(27.22% -0.009 -0.0486)
OKLCH	oklch(27.22% 0.049 259.5)
XYZ	xyz(1.9991, 2.0040, 4.9831)
Luminance	0.0200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18273F #3F3018

analogous

#183B3F #18273F #1D183F

triadic

#18273F #3F1827 #273F18

tetradic

#18273F #3F183B #3F3018 #183F1D

square

#18273F #3F183B #3F3018 #183F1D

split-complementary

#18273F #3F1D18 #3B3F18

monochromatic

#080E16 #080E16 #18273F #29426B #3A5E98

Accessibility & contrast

On white

14.99

#18273F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#18273F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18273F

14.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18273F	#FFFFFF	#000000	##FFFFFF
##18273F	1.00	14.99	1.40	14.99
#FFFFFF	14.99	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D2940

Deuteranopia (green-blind)

#19253E

Tritanopia (blue-blind)

#032C30

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #18273f;
/* rgb */ color: rgb(24, 39, 63);
/* oklch */ color: oklch(27.2% 0.049 259.5);

Tailwind

colors: {
  custom: {
    50: '#586074',
    500: '#18273f',
    950: '#000000',
  },
}

SCSS

$custom: #18273f;
$custom-light: #586074;
$custom-dark: #000000;

JSON

{
  "hex": "#18273f",
  "rgb": {
    "r": 24,
    "g": 39,
    "b": 63
  },
  "hsl": {
    "h": 216.923,
    "s": 44.828,
    "l": 17.059
  },
  "oklch": {
    "l": 0.27221,
    "c": 0.04938,
    "h": 259.5
  },
  "luminance": 0.02004
}

Semantic roles & 50–950 ramp

primary

#18273F

secondary

#75603D

accent

#A353D5

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030508

muted

#78797B

Preview Lab

Preview with #18273F

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

Preview Lab → · Contrast checker → · Palette generator →