#1D1D7B#1D1D7B

#1D1D7B is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.9% C 0.153 H 272.9°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#1D1D7B
RGB	rgb(29, 29, 123)
HSL	hsl(240, 62%, 30%)
HSV	hsv(240, 76%, 48%)
CMYK	cmyk(76.4%, 76.4%, 0%, 51.8%)
CIE-LAB	lab(18.23, 33.61, -52.73)
CIE-LCH	lch(18.23, 62.53, 302.51°)
OKLab	oklab(30.94% 0.0079 -0.1526)
OKLCH	oklch(30.94% 0.153 272.9)
XYZ	xyz(4.5200, 2.5695, 18.9928)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1D7B #7B7B1D

analogous

#1D4C7B #1D1D7B #4C1D7B

triadic

#1D1D7B #7B1D1D #1D7B1D

tetradic

#1D1D7B #7B1D4C #7B7B1D #1D7B4C

square

#1D1D7B #7B1D4C #7B7B1D #1D7B4C

split-complementary

#1D1D7B #7B4C1D #4C7B1D

monochromatic

#060619 #111149 #1D1D7B #2929AD #4040D2

Accessibility & contrast

On white

13.87

#1D1D7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1D1D7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1D7B

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1D7B	#FFFFFF	#000000	##FFFFFF
##1D1D7B	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317E

Deuteranopia (green-blind)

#002879

Tritanopia (blue-blind)

#00384A

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1d1d7b;
/* rgb */ color: rgb(29, 29, 123);
/* oklch */ color: oklch(30.9% 0.153 272.9);

Tailwind

colors: {
  custom: {
    50: '#6a5aa2',
    500: '#1d1d7b',
    950: '#000000',
  },
}

SCSS

$custom: #1d1d7b;
$custom-light: #6a5aa2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1d7b",
  "rgb": {
    "r": 29,
    "g": 29,
    "b": 123
  },
  "hsl": {
    "h": 240,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.30936,
    "c": 0.15278,
    "h": 272.9
  },
  "luminance": 0.0257
}

Semantic roles & 50–950 ramp

primary

#1D1D7B

secondary

#AFAF45

accent

#E543E5

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1D1D7B

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

Preview Lab → · Contrast checker → · Palette generator →