#1D227E#1D227E

#1D227E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.1% C 0.151 H 271.8°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#1D227E
RGB	rgb(29, 34, 126)
HSL	hsl(237, 63%, 30%)
HSV	hsv(237, 77%, 49%)
CMYK	cmyk(77%, 73%, 0%, 50.6%)
CIE-LAB	lab(19.68, 31.56, -52.24)
CIE-LCH	lch(19.68, 61.03, 301.13°)
OKLab	oklab(32.07% 0.0047 -0.1512)
OKLCH	oklch(32.07% 0.151 271.8)
XYZ	xyz(4.8433, 2.9111, 20.0413)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D227E #7E791D

analogous

#1D527E #1D227E #481D7E

triadic

#1D227E #7E1D22 #227E1D

tetradic

#1D227E #7E1D52 #7E791D #1D7E48

square

#1D227E #7E1D52 #7E791D #1D7E48

split-complementary

#1D227E #7E481D #527E1D

monochromatic

#06071B #12154C #1D227E #282FB0 #4249D3

Accessibility & contrast

On white

13.27

#1D227E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1D227E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D227E

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D227E	#FFFFFF	#000000	##FFFFFF
##1D227E	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003481

Deuteranopia (green-blind)

#002B7C

Tritanopia (blue-blind)

#003C4D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d227e;
/* rgb */ color: rgb(29, 34, 126);
/* oklch */ color: oklch(32.1% 0.151 271.8);

Tailwind

colors: {
  custom: {
    50: '#6a5ea4',
    500: '#1d227e',
    950: '#000000',
  },
}

SCSS

$custom: #1d227e;
$custom-light: #6a5ea4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d227e",
  "rgb": {
    "r": 29,
    "g": 34,
    "b": 126
  },
  "hsl": {
    "h": 236.907,
    "s": 62.581,
    "l": 30.392
  },
  "oklch": {
    "l": 0.32072,
    "c": 0.15125,
    "h": 271.8
  },
  "luminance": 0.02912
}

Semantic roles & 50–950 ramp

primary

#1D227E

secondary

#B1AC45

accent

#DD42E6

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #1D227E

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

Preview Lab → · Contrast checker → · Palette generator →