#1B1980#1B1980

#1B1980 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.164 H 272.1°. Best body text is #FFFFFF at 14.02:1 contrast (WCAG AA passes).

Color values

HEX	#1B1980
RGB	rgb(27, 25, 128)
HSL	hsl(241, 67%, 30%)
HSV	hsv(241, 80%, 50%)
CMYK	cmyk(78.9%, 80.5%, 0%, 49.8%)
CIE-LAB	lab(17.86, 37.52, -56.54)
CIE-LCH	lch(17.86, 67.85, 303.57°)
OKLab	oklab(30.81% 0.0061 -0.1636)
OKLCH	oklch(30.81% 0.164 272.1)
XYZ	xyz(4.6946, 2.4863, 20.6504)
Luminance	0.0249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1980 #7E8019

analogous

#194B80 #1B1980 #4E1980

triadic

#1B1980 #801B19 #19801B

tetradic

#1B1980 #80194B #7E8019 #19804E

square

#1B1980 #80194B #7E8019 #19804E

split-complementary

#1B1980 #804E19 #4B8019

monochromatic

#05051A #100F4D #1B1980 #2623B3 #3E3BD9

Accessibility & contrast

On white

14.02

#1B1980 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#1B1980 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1980

14.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1980	#FFFFFF	#000000	##FFFFFF
##1B1980	1.00	14.02	1.50	14.02
#FFFFFF	14.02	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003183

Deuteranopia (green-blind)

#00277E

Tritanopia (blue-blind)

#00384C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1b1980;
/* rgb */ color: rgb(27, 25, 128);
/* oklch */ color: oklch(30.8% 0.164 272.1);

Tailwind

colors: {
  custom: {
    50: '#6b58a6',
    500: '#1b1980',
    950: '#000000',
  },
}

SCSS

$custom: #1b1980;
$custom-light: #6b58a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1980",
  "rgb": {
    "r": 27,
    "g": 25,
    "b": 128
  },
  "hsl": {
    "h": 241.165,
    "s": 67.32,
    "l": 30
  },
  "oklch": {
    "l": 0.30808,
    "c": 0.16375,
    "h": 272.1
  },
  "luminance": 0.02487
}

Semantic roles & 50–950 ramp

primary

#1B1980

secondary

#B2B441

accent

#EA3EE7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1B1980

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

Preview Lab → · Contrast checker → · Palette generator →