#1D1DA1#1D1DA1

#1D1DA1 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.4% C 0.200 H 270.0°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#1D1DA1
RGB	rgb(29, 29, 161)
HSL	hsl(240, 69%, 37%)
HSV	hsv(240, 82%, 63%)
CMYK	cmyk(82%, 82%, 0%, 36.9%)
CIE-LAB	lab(22.70, 46.48, -69.02)
CIE-LCH	lch(22.70, 83.21, 303.96°)
OKLab	oklab(35.38% 0.0001 -0.1998)
OKLCH	oklch(35.38% 0.2 270)
XYZ	xyz(7.3769, 3.7123, 34.0391)
Luminance	0.0371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1DA1 #A1A11D

analogous

#1D5FA1 #1D1DA1 #5F1DA1

triadic

#1D1DA1 #A11D1D #1DA11D

tetradic

#1D1DA1 #A11D5F #A1A11D #1DA15F

square

#1D1DA1 #A11D5F #A1A11D #1DA15F

split-complementary

#1D1DA1 #A15F1D #5FA11D

monochromatic

#0A0A39 #14146D #1D1DA1 #2626D5 #5858E1

Accessibility & contrast

On white

12.05

#1D1DA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1D1DA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1DA1

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1DA1	#FFFFFF	#000000	##FFFFFF
##1D1DA1	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA5

Deuteranopia (green-blind)

#002F9F

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d1da1;
/* rgb */ color: rgb(29, 29, 161);
/* oklch */ color: oklch(35.4% 0.200 270.0);

Tailwind

colors: {
  custom: {
    50: '#745dbe',
    500: '#1d1da1',
    950: '#000000',
  },
}

SCSS

$custom: #1d1da1;
$custom-light: #745dbe;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1da1",
  "rgb": {
    "r": 29,
    "g": 29,
    "b": 161
  },
  "hsl": {
    "h": 240,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.35378,
    "c": 0.19984,
    "h": 270
  },
  "luminance": 0.03713
}

Semantic roles & 50–950 ramp

primary

#1D1DA1

secondary

#C4C455

accent

#EC3CEC

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1D1DA1

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

Preview Lab → · Contrast checker → · Palette generator →