#1B1E76#1B1E76

#1B1E76 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.4% C 0.146 H 272.3°. Best body text is #FFFFFF at 14.06:1 contrast (WCAG AA passes).

Color values

HEX	#1B1E76
RGB	rgb(27, 30, 118)
HSL	hsl(238, 63%, 28%)
HSV	hsv(238, 77%, 46%)
CMYK	cmyk(77.1%, 74.6%, 0%, 53.7%)
CIE-LAB	lab(17.78, 30.97, -50.28)
CIE-LCH	lch(17.78, 59.05, 301.63°)
OKLab	oklab(30.42% 0.0057 -0.1455)
OKLCH	oklch(30.42% 0.146 272.3)
XYZ	xyz(4.1852, 2.4691, 17.3920)
Luminance	0.0247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1E76 #76731B

analogous

#1B4B76 #1B1E76 #451B76

triadic

#1B1E76 #761B1E #1E761B

tetradic

#1B1E76 #761B4B #76731B #1B7645

square

#1B1E76 #761B4B #76731B #1B7645

split-complementary

#1B1E76 #76451B #4B761B

monochromatic

#060619 #101144 #1B1E76 #262BA8 #3A3FD2

Accessibility & contrast

On white

14.06

#1B1E76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#1B1E76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1E76

14.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1E76	#FFFFFF	#000000	##FFFFFF
##1B1E76	1.00	14.06	1.49	14.06
#FFFFFF	14.06	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003079

Deuteranopia (green-blind)

#002774

Tritanopia (blue-blind)

#003748

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1b1e76;
/* rgb */ color: rgb(27, 30, 118);
/* oklch */ color: oklch(30.4% 0.146 272.3);

Tailwind

colors: {
  custom: {
    50: '#685a9e',
    500: '#1b1e76',
    950: '#000000',
  },
}

SCSS

$custom: #1b1e76;
$custom-light: #685a9e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1e76",
  "rgb": {
    "r": 27,
    "g": 30,
    "b": 118
  },
  "hsl": {
    "h": 238.022,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30415,
    "c": 0.14559,
    "h": 272.3
  },
  "luminance": 0.0247
}

Semantic roles & 50–950 ramp

primary

#1B1E76

secondary

#AAA742

accent

#E042E6

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1B1E76

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

Preview Lab → · Contrast checker → · Palette generator →