#1D1589#1D1589

#1D1589 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.5% C 0.178 H 272.5°. Best body text is #FFFFFF at 13.81:1 contrast (WCAG AA passes).

Color values

HEX	#1D1589
RGB	rgb(29, 21, 137)
HSL	hsl(244, 73%, 31%)
HSV	hsv(244, 85%, 54%)
CMYK	cmyk(78.8%, 84.7%, 0%, 46.3%)
CIE-LAB	lab(18.38, 42.70, -61.35)
CIE-LCH	lch(18.38, 74.75, 304.84°)
OKLab	oklab(31.53% 0.0077 -0.1775)
OKLCH	oklch(31.53% 0.178 272.5)
XYZ	xyz(5.2887, 2.6031, 23.8858)
Luminance	0.0260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1589 #818915

analogous

#154789 #1D1589 #571589

triadic

#1D1589 #891D15 #15891D

tetradic

#1D1589 #891547 #818915 #158957

square

#1D1589 #891547 #818915 #158957

split-complementary

#1D1589 #895715 #478915

monochromatic

#07051F #120D54 #1D1589 #281DBE #4438E0

Accessibility & contrast

On white

13.81

#1D1589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1D1589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1589

13.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1589	#FFFFFF	#000000	##FFFFFF
##1D1589	1.00	13.81	1.52	13.81
#FFFFFF	13.81	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328C

Deuteranopia (green-blind)

#002787

Tritanopia (blue-blind)

#003A51

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d1589;
/* rgb */ color: rgb(29, 21, 137);
/* oklch */ color: oklch(31.5% 0.178 272.5);

Tailwind

colors: {
  custom: {
    50: '#6e56ad',
    500: '#1d1589',
    950: '#000000',
  },
}

SCSS

$custom: #1d1589;
$custom-light: #6e56ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1589",
  "rgb": {
    "r": 29,
    "g": 21,
    "b": 137
  },
  "hsl": {
    "h": 244.138,
    "s": 73.418,
    "l": 30.98
  },
  "oklch": {
    "l": 0.31526,
    "c": 0.17765,
    "h": 272.5
  },
  "luminance": 0.02604
}

Semantic roles & 50–950 ramp

primary

#1D1589

secondary

#B4BD3D

accent

#F038E3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #1D1589

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

Preview Lab → · Contrast checker → · Palette generator →