#182B4C#182B4C

#182B4C is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.2% C 0.065 H 260.7°. Best body text is #FFFFFF at 14.11:1 contrast (WCAG AA passes).

Color values

HEX	#182B4C
RGB	rgb(24, 43, 76)
HSL	hsl(218, 52%, 20%)
HSV	hsv(218, 68%, 30%)
CMYK	cmyk(68.4%, 43.4%, 0%, 70.2%)
CIE-LAB	lab(17.66, 4.49, -22.74)
CIE-LCH	lch(17.66, 23.18, 281.16°)
OKLab	oklab(29.15% -0.0105 -0.0646)
OKLCH	oklch(29.15% 0.065 260.7)
XYZ	xyz(2.5446, 2.4435, 7.1736)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B4C #4C3918

analogous

#18454C #182B4C #1F184C

triadic

#182B4C #4C182B #2B4C18

tetradic

#182B4C #4C1845 #4C3918 #184C1F

square

#182B4C #4C1845 #4C3918 #184C1F

split-complementary

#182B4C #4C1F18 #454C18

monochromatic

#070D17 #09111D #182B4C #27457B #3560A9

Accessibility & contrast

On white

14.11

#182B4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#182B4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B4C

14.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B4C	#FFFFFF	#000000	##FFFFFF
##182B4C	1.00	14.11	1.49	14.11
#FFFFFF	14.11	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D2E4D

Deuteranopia (green-blind)

#15294B

Tritanopia (blue-blind)

#003237

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #182b4c;
/* rgb */ color: rgb(24, 43, 76);
/* oklch */ color: oklch(29.2% 0.065 260.7);

Tailwind

colors: {
  custom: {
    50: '#5b647e',
    500: '#182b4c',
    950: '#000000',
  },
}

SCSS

$custom: #182b4c;
$custom-light: #5b647e;
$custom-dark: #000000;

JSON

{
  "hex": "#182b4c",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 76
  },
  "hsl": {
    "h": 218.077,
    "s": 52,
    "l": 19.608
  },
  "oklch": {
    "l": 0.29155,
    "c": 0.06549,
    "h": 260.7
  },
  "luminance": 0.02444
}

Semantic roles & 50–950 ramp

primary

#182B4C

secondary

#83693D

accent

#A74CDB

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #182B4C

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

Preview Lab → · Contrast checker → · Palette generator →