#182B71#182B71

#182B71 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.2% C 0.123 H 267.3°. Best body text is #FFFFFF at 12.94:1 contrast (WCAG AA passes).

Color values

HEX	#182B71
RGB	rgb(24, 43, 113)
HSL	hsl(227, 65%, 27%)
HSV	hsv(227, 79%, 44%)
CMYK	cmyk(78.8%, 61.9%, 0%, 55.7%)
CIE-LAB	lab(20.49, 19.75, -42.62)
CIE-LCH	lch(20.49, 46.97, 294.87°)
OKLab	oklab(32.21% -0.0057 -0.123)
OKLCH	oklch(32.21% 0.123 267.3)
XYZ	xyz(4.2202, 3.1137, 15.9982)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B71 #715E18

analogous

#185871 #182B71 #321871

triadic

#182B71 #71182B #2B7118

tetradic

#182B71 #711858 #715E18 #187132

square

#182B71 #711858 #715E18 #187132

split-complementary

#182B71 #713218 #587118

monochromatic

#050A19 #0D183F #182B71 #233EA3 #3053D3

Accessibility & contrast

On white

12.94

#182B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#182B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B71

12.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B71	#FFFFFF	#000000	##FFFFFF
##182B71	1.00	12.94	1.62	12.94
#FFFFFF	12.94	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003673

Deuteranopia (green-blind)

#002D70

Tritanopia (blue-blind)

#003D49

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #182b71;
/* rgb */ color: rgb(24, 43, 113);
/* oklch */ color: oklch(32.2% 0.123 267.3);

Tailwind

colors: {
  custom: {
    50: '#64649a',
    500: '#182b71',
    950: '#000000',
  },
}

SCSS

$custom: #182b71;
$custom-light: #64649a;
$custom-dark: #000000;

JSON

{
  "hex": "#182b71",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 113
  },
  "hsl": {
    "h": 227.191,
    "s": 64.964,
    "l": 26.863
  },
  "oklch": {
    "l": 0.32208,
    "c": 0.12318,
    "h": 267.3
  },
  "luminance": 0.03114
}

Semantic roles & 50–950 ramp

primary

#182B71

secondary

#A6903E

accent

#C440E8

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #182B71

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

Preview Lab → · Contrast checker → · Palette generator →