#1B2182#1B2182

#1B2182 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.2% C 0.158 H 270.8°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#1B2182
RGB	rgb(27, 33, 130)
HSL	hsl(237, 66%, 31%)
HSV	hsv(237, 79%, 51%)
CMYK	cmyk(79.2%, 74.6%, 0%, 49%)
CIE-LAB	lab(19.77, 33.47, -54.64)
CIE-LCH	lch(19.77, 64.07, 301.49°)
OKLab	oklab(32.23% 0.0023 -0.1582)
OKLCH	oklch(32.23% 0.158 270.8)
XYZ	xyz(5.0237, 2.9319, 21.4159)
Luminance	0.0293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2182 #827C1B

analogous

#1B5482 #1B2182 #481B82

triadic

#1B2182 #821B21 #21821B

tetradic

#1B2182 #821B54 #827C1B #1B8248

square

#1B2182 #821B54 #827C1B #1B8248

split-complementary

#1B2182 #82481B #54821B

monochromatic

#06071D #10144F #1B2182 #262EB5 #4049D7

Accessibility & contrast

On white

13.24

#1B2182 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1B2182 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2182

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2182	#FFFFFF	#000000	##FFFFFF
##1B2182	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003585

Deuteranopia (green-blind)

#002B80

Tritanopia (blue-blind)

#003D4F

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b2182;
/* rgb */ color: rgb(27, 33, 130);
/* oklch */ color: oklch(32.2% 0.158 270.8);

Tailwind

colors: {
  custom: {
    50: '#6b5da7',
    500: '#1b2182',
    950: '#000000',
  },
}

SCSS

$custom: #1b2182;
$custom-light: #6b5da7;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2182",
  "rgb": {
    "r": 27,
    "g": 33,
    "b": 130
  },
  "hsl": {
    "h": 236.505,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.32231,
    "c": 0.15823,
    "h": 270.8
  },
  "luminance": 0.02932
}

Semantic roles & 50–950 ramp

primary

#1B2182

secondary

#B6AF43

accent

#DF3FE9

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080410

muted

#7A797F

Preview Lab

Preview with #1B2182

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

Preview Lab → · Contrast checker → · Palette generator →