#1D2174#1D2174

#1D2174 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.8% C 0.139 H 272.7°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#1D2174
RGB	rgb(29, 33, 116)
HSL	hsl(237, 60%, 28%)
HSV	hsv(237, 75%, 45%)
CMYK	cmyk(75%, 71.6%, 0%, 54.5%)
CIE-LAB	lab(18.41, 28.49, -47.95)
CIE-LCH	lch(18.41, 55.78, 300.72°)
OKLab	oklab(30.84% 0.0066 -0.1386)
OKLCH	oklch(30.84% 0.139 272.7)
XYZ	xyz(4.2019, 2.6095, 16.8018)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2174 #74701D

analogous

#1D4C74 #1D2174 #441D74

triadic

#1D2174 #741D21 #21741D

tetradic

#1D2174 #741D4C #74701D #1D7444

square

#1D2174 #741D4C #74701D #1D7444

split-complementary

#1D2174 #74441D #4C741D

monochromatic

#060718 #111343 #1D2174 #292FA5 #3D44CE

Accessibility & contrast

On white

13.80

#1D2174 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1D2174 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2174

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2174	#FFFFFF	#000000	##FFFFFF
##1D2174	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003177

Deuteranopia (green-blind)

#002972

Tritanopia (blue-blind)

#003847

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1d2174;
/* rgb */ color: rgb(29, 33, 116);
/* oklch */ color: oklch(30.8% 0.139 272.7);

Tailwind

colors: {
  custom: {
    50: '#685c9d',
    500: '#1d2174',
    950: '#000000',
  },
}

SCSS

$custom: #1d2174;
$custom-light: #685c9d;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2174",
  "rgb": {
    "r": 29,
    "g": 33,
    "b": 116
  },
  "hsl": {
    "h": 237.241,
    "s": 60,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30837,
    "c": 0.13881,
    "h": 272.7
  },
  "luminance": 0.0261
}

Semantic roles & 50–950 ramp

primary

#1D2174

secondary

#A8A445

accent

#DC45E3

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #1D2174

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

Preview Lab → · Contrast checker → · Palette generator →