#1D1D64#1D1D64

#1D1D64 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.5% C 0.121 H 275.5°. Best body text is #FFFFFF at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#1D1D64
RGB	rgb(29, 29, 100)
HSL	hsl(240, 55%, 25%)
HSV	hsv(240, 71%, 39%)
CMYK	cmyk(71%, 71%, 0%, 60.8%)
CIE-LAB	lab(15.80, 25.15, -41.81)
CIE-LCH	lch(15.80, 48.79, 301.03°)
OKLab	oklab(28.46% 0.0116 -0.1207)
OKLCH	oklch(28.46% 0.121 275.5)
XYZ	xyz(3.2456, 2.0598, 12.2807)
Luminance	0.0206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1D64 #64641D

analogous

#1D4064 #1D1D64 #401D64

triadic

#1D1D64 #641D1D #1D641D

tetradic

#1D1D64 #641D40 #64641D #1D6440

square

#1D1D64 #641D40 #64641D #1D6440

split-complementary

#1D1D64 #64401D #40641D

monochromatic

#070718 #0F0F35 #1D1D64 #2B2B93 #3939C3

Accessibility & contrast

On white

14.87

#1D1D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#1D1D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1D64

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1D64	#FFFFFF	#000000	##FFFFFF
##1D1D64	1.00	14.87	1.41	14.87
#FFFFFF	14.87	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B66

Deuteranopia (green-blind)

#002463

Tritanopia (blue-blind)

#00303D

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1d1d64;
/* rgb */ color: rgb(29, 29, 100);
/* oklch */ color: oklch(28.5% 0.121 275.5);

Tailwind

colors: {
  custom: {
    50: '#645991',
    500: '#1d1d64',
    950: '#000000',
  },
}

SCSS

$custom: #1d1d64;
$custom-light: #645991;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1d64",
  "rgb": {
    "r": 29,
    "g": 29,
    "b": 100
  },
  "hsl": {
    "h": 240,
    "s": 55.039,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28456,
    "c": 0.12124,
    "h": 275.5
  },
  "luminance": 0.0206
}

Semantic roles & 50–950 ramp

primary

#1D1D64

secondary

#999944

accent

#DE49DE

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #1D1D64

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

Preview Lab → · Contrast checker → · Palette generator →