#1B2088#1B2088

#1B2088 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.7% C 0.167 H 270.6°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B2088
RGB	rgb(27, 32, 136)
HSL	hsl(237, 67%, 32%)
HSV	hsv(237, 80%, 53%)
CMYK	cmyk(80.1%, 76.5%, 0%, 46.7%)
CIE-LAB	lab(20.22, 36.24, -57.68)
CIE-LCH	lch(20.22, 68.12, 302.14°)
OKLab	oklab(32.75% 0.0018 -0.167)
OKLCH	oklch(32.75% 0.167 270.6)
XYZ	xyz(5.4109, 3.0430, 23.5900)
Luminance	0.0304 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2088 #88831B

analogous

#1B5788 #1B2088 #4D1B88

triadic

#1B2088 #881B20 #20881B

tetradic

#1B2088 #881B57 #88831B #1B884D

square

#1B2088 #881B57 #88831B #1B884D

split-complementary

#1B2088 #884D1B #57881B

monochromatic

#070822 #111455 #1B2088 #252CBB #444ADA

Accessibility & contrast

On white

13.05

#1B2088 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1B2088 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2088

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2088	#FFFFFF	#000000	##FFFFFF
##1B2088	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368B

Deuteranopia (green-blind)

#002B86

Tritanopia (blue-blind)

#003E52

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2088;
/* rgb */ color: rgb(27, 32, 136);
/* oklch */ color: oklch(32.7% 0.167 270.6);

Tailwind

colors: {
  custom: {
    50: '#6c5dac',
    500: '#1b2088',
    950: '#000000',
  },
}

SCSS

$custom: #1b2088;
$custom-light: #6c5dac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2088",
  "rgb": {
    "r": 27,
    "g": 32,
    "b": 136
  },
  "hsl": {
    "h": 237.248,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32747,
    "c": 0.16705,
    "h": 270.6
  },
  "luminance": 0.03044
}

Semantic roles & 50–950 ramp

primary

#1B2088

secondary

#BBB644

accent

#E23EEA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1B2088

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

Preview Lab → · Contrast checker → · Palette generator →