#182C4E#182C4E

#182C4E is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.6% C 0.067 H 260.4°. Best body text is #FFFFFF at 13.91:1 contrast (WCAG AA passes).

Color values

HEX	#182C4E
RGB	rgb(24, 44, 78)
HSL	hsl(218, 53%, 20%)
HSV	hsv(218, 69%, 31%)
CMYK	cmyk(69.2%, 43.6%, 0%, 69.4%)
CIE-LAB	lab(18.12, 4.57, -23.36)
CIE-LCH	lch(18.12, 23.81, 281.07°)
OKLab	oklab(29.55% -0.0113 -0.0664)
OKLCH	oklch(29.55% 0.067 260.4)
XYZ	xyz(2.6520, 2.5454, 7.5578)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182C4E #4E3A18

analogous

#18474E #182C4E #1F184E

triadic

#182C4E #4E182C #2C4E18

tetradic

#182C4E #4E1847 #4E3A18 #184E1F

square

#182C4E #4E1847 #4E3A18 #184E1F

split-complementary

#182C4E #4E1F18 #474E18

monochromatic

#070D17 #0A121F #182C4E #26467D #3561AC

Accessibility & contrast

On white

13.91

#182C4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#182C4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182C4E

13.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182C4E	#FFFFFF	#000000	##FFFFFF
##182C4E	1.00	13.91	1.51	13.91
#FFFFFF	13.91	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D2F4F

Deuteranopia (green-blind)

#152A4D

Tritanopia (blue-blind)

#003439

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #182c4e;
/* rgb */ color: rgb(24, 44, 78);
/* oklch */ color: oklch(29.6% 0.067 260.4);

Tailwind

colors: {
  custom: {
    50: '#5b6480',
    500: '#182c4e',
    950: '#000000',
  },
}

SCSS

$custom: #182c4e;
$custom-light: #5b6480;
$custom-dark: #000000;

JSON

{
  "hex": "#182c4e",
  "rgb": {
    "r": 24,
    "g": 44,
    "b": 78
  },
  "hsl": {
    "h": 217.778,
    "s": 52.941,
    "l": 20
  },
  "oklch": {
    "l": 0.29554,
    "c": 0.06739,
    "h": 260.4
  },
  "luminance": 0.02546
}

Semantic roles & 50–950 ramp

primary

#182C4E

secondary

#856A3D

accent

#A74BDC

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #182C4E

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

Preview Lab → · Contrast checker → · Palette generator →