#182B63#182B63

#182B63 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 31.0% C 0.102 H 266.3°. Best body text is #FFFFFF at 13.42:1 contrast (WCAG AA passes).

Color values

HEX	#182B63
RGB	rgb(24, 43, 99)
HSL	hsl(225, 61%, 24%)
HSV	hsv(225, 76%, 39%)
CMYK	cmyk(75.8%, 56.6%, 0%, 61.2%)
CIE-LAB	lab(19.32, 13.98, -35.43)
CIE-LCH	lch(19.32, 38.09, 291.54°)
OKLab	oklab(30.96% -0.0065 -0.1019)
OKLCH	oklch(30.96% 0.102 266.3)
XYZ	xyz(3.4919, 2.8224, 12.1627)
Luminance	0.0282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B63 #635018

analogous

#185163 #182B63 #2B1863

triadic

#182B63 #63182B #2B6318

tetradic

#182B63 #631851 #635018 #18632B

square

#182B63 #631851 #635018 #18632B

split-complementary

#182B63 #632B18 #516318

monochromatic

#060B19 #0C1632 #182B63 #244094 #3056C6

Accessibility & contrast

On white

13.42

#182B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#182B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B63

13.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B63	#FFFFFF	#000000	##FFFFFF
##182B63	1.00	13.42	1.56	13.42
#FFFFFF	13.42	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#043265

Deuteranopia (green-blind)

#002C62

Tritanopia (blue-blind)

#003842

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #182b63;
/* rgb */ color: rgb(24, 43, 99);
/* oklch */ color: oklch(31.0% 0.102 266.3);

Tailwind

colors: {
  custom: {
    50: '#606390',
    500: '#182b63',
    950: '#000000',
  },
}

SCSS

$custom: #182b63;
$custom-light: #606390;
$custom-dark: #000000;

JSON

{
  "hex": "#182b63",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 99
  },
  "hsl": {
    "h": 224.8,
    "s": 60.976,
    "l": 24.118
  },
  "oklch": {
    "l": 0.30955,
    "c": 0.10213,
    "h": 266.3
  },
  "luminance": 0.02823
}

Semantic roles & 50–950 ramp

primary

#182B63

secondary

#99823E

accent

#BB44E4

background

#F6F5F8

surface

#EBEAF0

border

#C6C6CB

text

#05050C

muted

#7A797D

Preview Lab

Preview with #182B63

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

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