#1D2582#1D2582

#1D2582 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.0% C 0.153 H 270.9°. Best body text is #FFFFFF at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#1D2582
RGB	rgb(29, 37, 130)
HSL	hsl(235, 64%, 31%)
HSV	hsv(235, 78%, 51%)
CMYK	cmyk(77.7%, 71.5%, 0%, 49%)
CIE-LAB	lab(20.81, 31.10, -52.92)
CIE-LCH	lch(20.81, 61.38, 300.44°)
OKLab	oklab(33.01% 0.0025 -0.1532)
OKLCH	oklch(33.01% 0.153 270.9)
XYZ	xyz(5.1962, 3.1955, 21.4577)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2582 #827A1D

analogous

#1D5782 #1D2582 #471D82

triadic

#1D2582 #821D25 #25821D

tetradic

#1D2582 #821D57 #827A1D #1D8247

square

#1D2582 #821D57 #827A1D #1D8247

split-complementary

#1D2582 #82471D #57821D

monochromatic

#07091E #121750 #1D2582 #2833B4 #4450D5

Accessibility & contrast

On white

12.81

#1D2582 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1D2582 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2582

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2582	#FFFFFF	#000000	##FFFFFF
##1D2582	1.00	12.81	1.64	12.81
#FFFFFF	12.81	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003785

Deuteranopia (green-blind)

#002D80

Tritanopia (blue-blind)

#003F50

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1d2582;
/* rgb */ color: rgb(29, 37, 130);
/* oklch */ color: oklch(33.0% 0.153 270.9);

Tailwind

colors: {
  custom: {
    50: '#6b60a7',
    500: '#1d2582',
    950: '#000000',
  },
}

SCSS

$custom: #1d2582;
$custom-light: #6b60a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2582",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 130
  },
  "hsl": {
    "h": 235.248,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.3301,
    "c": 0.15318,
    "h": 270.9
  },
  "luminance": 0.03196
}

Semantic roles & 50–950 ramp

primary

#1D2582

secondary

#B5AC46

accent

#D941E7

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1D2582

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

Preview Lab → · Contrast checker → · Palette generator →