#1D1B76#1D1B76

#1D1B76 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.1% C 0.148 H 273.8°. Best body text is #FFFFFF at 14.28:1 contrast (WCAG AA passes).

Color values

HEX	#1D1B76
RGB	rgb(29, 27, 118)
HSL	hsl(241, 63%, 28%)
HSV	hsv(241, 77%, 46%)
CMYK	cmyk(75.4%, 77.1%, 0%, 53.7%)
CIE-LAB	lab(17.24, 33.04, -51.16)
CIE-LCH	lch(17.24, 60.90, 302.86°)
OKLab	oklab(30.07% 0.0099 -0.148)
OKLCH	oklch(30.07% 0.148 273.8)
XYZ	xyz(4.1676, 2.3527, 17.3705)
Luminance	0.0235 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1B76 #74761B

analogous

#1B4676 #1D1B76 #4A1B76

triadic

#1D1B76 #761D1B #1B761D

tetradic

#1D1B76 #761B46 #74761B #1B764A

square

#1D1B76 #761B46 #74761B #1B764A

split-complementary

#1D1B76 #764A1B #46761B

monochromatic

#060619 #111044 #1D1B76 #2926A8 #3D3AD2

Accessibility & contrast

On white

14.28

#1D1B76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#1D1B76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1B76

14.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1B76	#FFFFFF	#000000	##FFFFFF
##1D1B76	1.00	14.28	1.47	14.28
#FFFFFF	14.28	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F79

Deuteranopia (green-blind)

#002674

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1d1b76;
/* rgb */ color: rgb(29, 27, 118);
/* oklch */ color: oklch(30.1% 0.148 273.8);

Tailwind

colors: {
  custom: {
    50: '#69599f',
    500: '#1d1b76',
    950: '#000000',
  },
}

SCSS

$custom: #1d1b76;
$custom-light: #69599f;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1b76",
  "rgb": {
    "r": 29,
    "g": 27,
    "b": 118
  },
  "hsl": {
    "h": 241.319,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30065,
    "c": 0.14833,
    "h": 273.8
  },
  "luminance": 0.02353
}

Semantic roles & 50–950 ramp

primary

#1D1B76

secondary

#A8AA42

accent

#E642E2

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #1D1B76

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

Preview Lab → · Contrast checker → · Palette generator →