#1D2273#1D2273

#1D2273 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.9% C 0.136 H 272.6°. Best body text is #FFFFFF at 13.74:1 contrast (WCAG AA passes).

Color values

HEX	#1D2273
RGB	rgb(29, 34, 115)
HSL	hsl(237, 60%, 28%)
HSV	hsv(237, 75%, 45%)
CMYK	cmyk(74.8%, 70.4%, 0%, 54.9%)
CIE-LAB	lab(18.55, 27.45, -47.07)
CIE-LCH	lch(18.55, 54.49, 300.25°)
OKLab	oklab(30.91% 0.0061 -0.1361)
OKLCH	oklch(30.91% 0.136 272.6)
XYZ	xyz(4.1722, 2.6427, 16.5065)
Luminance	0.0264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2273 #736E1D

analogous

#1D4D73 #1D2273 #431D73

triadic

#1D2273 #731D22 #22731D

tetradic

#1D2273 #731D4D #736E1D #1D7343

square

#1D2273 #731D4D #736E1D #1D7343

split-complementary

#1D2273 #73431D #4D731D

monochromatic

#060718 #111442 #1D2273 #2930A4 #3C45CE

Accessibility & contrast

On white

13.74

#1D2273 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1D2273 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2273

13.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2273	#FFFFFF	#000000	##FFFFFF
##1D2273	1.00	13.74	1.53	13.74
#FFFFFF	13.74	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003176

Deuteranopia (green-blind)

#002971

Tritanopia (blue-blind)

#003847

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d2273;
/* rgb */ color: rgb(29, 34, 115);
/* oklch */ color: oklch(30.9% 0.136 272.6);

Tailwind

colors: {
  custom: {
    50: '#675d9c',
    500: '#1d2273',
    950: '#000000',
  },
}

SCSS

$custom: #1d2273;
$custom-light: #675d9c;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2273",
  "rgb": {
    "r": 29,
    "g": 34,
    "b": 115
  },
  "hsl": {
    "h": 236.512,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.30912,
    "c": 0.13621,
    "h": 272.6
  },
  "luminance": 0.02643
}

Semantic roles & 50–950 ramp

primary

#1D2273

secondary

#A7A145

accent

#DA45E3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1D2273

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

Preview Lab → · Contrast checker → · Palette generator →