#1B208A#1B208A

#1B208A is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.0% C 0.170 H 270.5°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#1B208A
RGB	rgb(27, 32, 138)
HSL	hsl(237, 67%, 32%)
HSV	hsv(237, 80%, 54%)
CMYK	cmyk(80.4%, 76.8%, 0%, 45.9%)
CIE-LAB	lab(20.44, 36.95, -58.56)
CIE-LCH	lch(20.44, 69.25, 302.25°)
OKLab	oklab(32.97% 0.0014 -0.1696)
OKLCH	oklch(32.97% 0.17 270.5)
XYZ	xyz(5.5544, 3.1004, 24.3455)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B208A #8A851B

analogous

#1B588A #1B208A #4D1B8A

triadic

#1B208A #8A1B20 #208A1B

tetradic

#1B208A #8A1B58 #8A851B #1B8A4D

square

#1B208A #8A1B58 #8A851B #1B8A4D

split-complementary

#1B208A #8A4D1B #588A1B

monochromatic

#070824 #111457 #1B208A #252CBD #454CDB

Accessibility & contrast

On white

12.96

#1B208A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1B208A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B208A

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B208A	#FFFFFF	#000000	##FFFFFF
##1B208A	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378D

Deuteranopia (green-blind)

#002C88

Tritanopia (blue-blind)

#003F53

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b208a;
/* rgb */ color: rgb(27, 32, 138);
/* oklch */ color: oklch(33.0% 0.170 270.5);

Tailwind

colors: {
  custom: {
    50: '#6d5dad',
    500: '#1b208a',
    950: '#000000',
  },
}

SCSS

$custom: #1b208a;
$custom-light: #6d5dad;
$custom-dark: #000000;

JSON

{
  "hex": "#1b208a",
  "rgb": {
    "r": 27,
    "g": 32,
    "b": 138
  },
  "hsl": {
    "h": 237.297,
    "s": 67.273,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32974,
    "c": 0.16961,
    "h": 270.5
  },
  "luminance": 0.03101
}

Semantic roles & 50–950 ramp

primary

#1B208A

secondary

#BCB745

accent

#E23EEA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1B208A

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

Preview Lab → · Contrast checker → · Palette generator →