#182E5C#182E5C

#182E5C is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.1% C 0.087 H 263.1°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#182E5C
RGB	rgb(24, 46, 92)
HSL	hsl(221, 59%, 23%)
HSV	hsv(221, 74%, 36%)
CMYK	cmyk(73.9%, 50%, 0%, 63.9%)
CIE-LAB	lab(19.72, 8.89, -30.16)
CIE-LCH	lch(19.72, 31.45, 286.41°)
OKLab	oklab(31.1% -0.0105 -0.0864)
OKLCH	oklch(31.1% 0.087 263.1)
XYZ	xyz(3.2848, 2.9206, 10.5138)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182E5C #5C4618

analogous

#18505C #182E5C #24185C

triadic

#182E5C #5C182E #2E5C18

tetradic

#182E5C #5C1850 #5C4618 #185C24

square

#182E5C #5C1850 #5C4618 #185C24

split-complementary

#182E5C #5C2418 #505C18

monochromatic

#060C18 #0B162B #182E5C #25468D #315FBD

Accessibility & contrast

On white

13.26

#182E5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#182E5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182E5C

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182E5C	#FFFFFF	#000000	##FFFFFF
##182E5C	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16335E

Deuteranopia (green-blind)

#082D5B

Tritanopia (blue-blind)

#003940

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #182e5c;
/* rgb */ color: rgb(24, 46, 92);
/* oklch */ color: oklch(31.1% 0.087 263.1);

Tailwind

colors: {
  custom: {
    50: '#5e668a',
    500: '#182e5c',
    950: '#000000',
  },
}

SCSS

$custom: #182e5c;
$custom-light: #5e668a;
$custom-dark: #000000;

JSON

{
  "hex": "#182e5c",
  "rgb": {
    "r": 24,
    "g": 46,
    "b": 92
  },
  "hsl": {
    "h": 220.588,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.31095,
    "c": 0.08701,
    "h": 263.1
  },
  "luminance": 0.02921
}

Semantic roles & 50–950 ramp

primary

#182E5C

secondary

#93773D

accent

#AF46E2

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05050C

muted

#797A7D

Preview Lab

Preview with #182E5C

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

Preview Lab → · Contrast checker → · Palette generator →