#1D1D8B#1D1D8B

#1D1D8B is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.8% C 0.173 H 271.5°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX	#1D1D8B
RGB	rgb(29, 29, 139)
HSL	hsl(240, 65%, 33%)
HSV	hsv(240, 79%, 55%)
CMYK	cmyk(79.1%, 79.1%, 0%, 45.5%)
CIE-LAB	lab(20.06, 39.19, -59.82)
CIE-LCH	lch(20.06, 71.51, 303.23°)
OKLab	oklab(32.77% 0.0047 -0.1732)
OKLCH	oklch(32.77% 0.173 271.5)
XYZ	xyz(5.6047, 3.0034, 24.7054)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1D8B #8B8B1D

analogous

#1D548B #1D1D8B #541D8B

triadic

#1D1D8B #8B1D1D #1D8B1D

tetradic

#1D1D8B #8B1D54 #8B8B1D #1D8B54

square

#1D1D8B #8B1D54 #8B8B1D #1D8B54

split-complementary

#1D1D8B #8B541D #548B1D

monochromatic

#080826 #121258 #1D1D8B #2828BE #4949D9

Accessibility & contrast

On white

13.12

#1D1D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1D1D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1D8B

13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1D8B	#FFFFFF	#000000	##FFFFFF
##1D1D8B	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368E

Deuteranopia (green-blind)

#002B89

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d1d8b;
/* rgb */ color: rgb(29, 29, 139);
/* oklch */ color: oklch(32.8% 0.173 271.5);

Tailwind

colors: {
  custom: {
    50: '#6e5bae',
    500: '#1d1d8b',
    950: '#000000',
  },
}

SCSS

$custom: #1d1d8b;
$custom-light: #6e5bae;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1d8b",
  "rgb": {
    "r": 29,
    "g": 29,
    "b": 139
  },
  "hsl": {
    "h": 240,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.32767,
    "c": 0.17323,
    "h": 271.5
  },
  "luminance": 0.03004
}

Semantic roles & 50–950 ramp

primary

#1D1D8B

secondary

#BBBB49

accent

#E83FE8

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #1D1D8B

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

Preview Lab → · Contrast checker → · Palette generator →