#1D1FA2#1D1FA2

#1D1FA2 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.7% C 0.199 H 269.8°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#1D1FA2
RGB	rgb(29, 31, 162)
HSL	hsl(239, 70%, 37%)
HSV	hsv(239, 82%, 64%)
CMYK	cmyk(82.1%, 80.9%, 0%, 36.5%)
CIE-LAB	lab(23.17, 45.79, -68.85)
CIE-LCH	lch(23.17, 82.69, 303.63°)
OKLab	oklab(35.74% -0.0006 -0.1994)
OKLCH	oklch(35.74% 0.199 269.8)
XYZ	xyz(7.5160, 3.8489, 34.5222)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1FA2 #A2A01D

analogous

#1D61A2 #1D1FA2 #5E1DA2

triadic

#1D1FA2 #A21D1F #1FA21D

tetradic

#1D1FA2 #A21D61 #A2A01D #1DA25E

square

#1D1FA2 #A21D61 #A2A01D #1DA25E

split-complementary

#1D1FA2 #A25E1D #61A21D

monochromatic

#0A0B3A #14156E #1D1FA2 #2629D6 #585AE1

Accessibility & contrast

On white

11.86

#1D1FA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1D1FA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1FA2

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1FA2	#FFFFFF	#000000	##FFFFFF
##1D1FA2	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA6

Deuteranopia (green-blind)

#0030A0

Tritanopia (blue-blind)

#004861

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1d1fa2;
/* rgb */ color: rgb(29, 31, 162);
/* oklch */ color: oklch(35.7% 0.199 269.8);

Tailwind

colors: {
  custom: {
    50: '#745ebf',
    500: '#1d1fa2',
    950: '#000000',
  },
}

SCSS

$custom: #1d1fa2;
$custom-light: #745ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1fa2",
  "rgb": {
    "r": 29,
    "g": 31,
    "b": 162
  },
  "hsl": {
    "h": 239.098,
    "s": 69.634,
    "l": 37.451
  },
  "oklch": {
    "l": 0.3574,
    "c": 0.19938,
    "h": 269.8
  },
  "luminance": 0.0385
}

Semantic roles & 50–950 ramp

primary

#1D1FA2

secondary

#C5C356

accent

#EA3BEC

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1D1FA2

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

Preview Lab → · Contrast checker → · Palette generator →