#1D2279#1D2279

#1D2279 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.5% C 0.144 H 272.1°. Best body text is #FFFFFF at 13.49:1 contrast (WCAG AA passes).

Color values

HEX	#1D2279
RGB	rgb(29, 34, 121)
HSL	hsl(237, 61%, 29%)
HSV	hsv(237, 76%, 47%)
CMYK	cmyk(76%, 71.9%, 0%, 52.5%)
CIE-LAB	lab(19.16, 29.70, -49.92)
CIE-LCH	lch(19.16, 58.09, 300.75°)
OKLab	oklab(31.54% 0.0054 -0.1444)
OKLCH	oklch(31.54% 0.144 272.1)
XYZ	xyz(4.5287, 2.7853, 18.3844)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2279 #79741D

analogous

#1D5079 #1D2279 #461D79

triadic

#1D2279 #791D22 #22791D

tetradic

#1D2279 #791D50 #79741D #1D7946

square

#1D2279 #791D50 #79741D #1D7946

split-complementary

#1D2279 #79461D #50791D

monochromatic

#060719 #111448 #1D2279 #2930AA #3F47D1

Accessibility & contrast

On white

13.49

#1D2279 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#1D2279 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2279

13.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2279	#FFFFFF	#000000	##FFFFFF
##1D2279	1.00	13.49	1.56	13.49
#FFFFFF	13.49	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337C

Deuteranopia (green-blind)

#002A77

Tritanopia (blue-blind)

#003A4A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1d2279;
/* rgb */ color: rgb(29, 34, 121);
/* oklch */ color: oklch(31.5% 0.144 272.1);

Tailwind

colors: {
  custom: {
    50: '#695da1',
    500: '#1d2279',
    950: '#000000',
  },
}

SCSS

$custom: #1d2279;
$custom-light: #695da1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2279",
  "rgb": {
    "r": 29,
    "g": 34,
    "b": 121
  },
  "hsl": {
    "h": 236.739,
    "s": 61.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.31539,
    "c": 0.14449,
    "h": 272.1
  },
  "luminance": 0.02786
}

Semantic roles & 50–950 ramp

primary

#1D2279

secondary

#ADA745

accent

#DC43E4

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1D2279

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

Preview Lab → · Contrast checker → · Palette generator →