#1D1F89#1D1F89

#1D1F89 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.8% C 0.169 H 271.5°. Best body text is #FFFFFF at 13.05:1 contrast (WCAG AA passes).

Color values

HEX	#1D1F89
RGB	rgb(29, 31, 137)
HSL	hsl(239, 65%, 33%)
HSV	hsv(239, 79%, 54%)
CMYK	cmyk(78.8%, 77.4%, 0%, 46.3%)
CIE-LAB	lab(20.23, 37.35, -58.28)
CIE-LCH	lch(20.23, 69.22, 302.66°)
OKLab	oklab(32.82% 0.0043 -0.1687)
OKLCH	oklch(32.82% 0.169 271.5)
XYZ	xyz(5.5105, 3.0467, 23.9597)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1F89 #89871D

analogous

#1D5589 #1D1F89 #511D89

triadic

#1D1F89 #891D1F #1F891D

tetradic

#1D1F89 #891D55 #89871D #1D8951

square

#1D1F89 #891D55 #89871D #1D8951

split-complementary

#1D1F89 #89511D #55891D

monochromatic

#080824 #121456 #1D1F89 #282ABC #484BD8

Accessibility & contrast

On white

13.05

#1D1F89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1D1F89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1F89

13.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1F89	#FFFFFF	#000000	##FFFFFF
##1D1F89	1.00	13.05	1.61	13.05
#FFFFFF	13.05	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368C

Deuteranopia (green-blind)

#002B87

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1d1f89;
/* rgb */ color: rgb(29, 31, 137);
/* oklch */ color: oklch(32.8% 0.169 271.5);

Tailwind

colors: {
  custom: {
    50: '#6d5cad',
    500: '#1d1f89',
    950: '#000000',
  },
}

SCSS

$custom: #1d1f89;
$custom-light: #6d5cad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1f89",
  "rgb": {
    "r": 29,
    "g": 31,
    "b": 137
  },
  "hsl": {
    "h": 238.889,
    "s": 65.06,
    "l": 32.549
  },
  "oklch": {
    "l": 0.32821,
    "c": 0.16878,
    "h": 271.5
  },
  "luminance": 0.03047
}

Semantic roles & 50–950 ramp

primary

#1D1F89

secondary

#BAB847

accent

#E540E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1D1F89

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

Preview Lab → · Contrast checker → · Palette generator →