#1F1673#1F1673

#1F1673 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.1% C 0.149 H 276.2°. Best body text is #FFFFFF at 14.78:1 contrast (WCAG AA passes).

Color values

HEX	#1F1673
RGB	rgb(31, 22, 115)
HSL	hsl(246, 68%, 27%)
HSV	hsv(246, 81%, 45%)
CMYK	cmyk(73%, 80.9%, 0%, 54.9%)
CIE-LAB	lab(16.02, 35.12, -51.24)
CIE-LCH	lch(16.02, 62.12, 304.43°)
OKLab	oklab(29.14% 0.016 -0.1481)
OKLCH	oklch(29.14% 0.149 276.2)
XYZ	xyz(3.9455, 2.1026, 16.4142)
Luminance	0.0210 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1673 #6A7316

analogous

#163C73 #1F1673 #4E1673

triadic

#1F1673 #731F16 #16731F

tetradic

#1F1673 #73163C #6A7316 #16734E

square

#1F1673 #73163C #6A7316 #16734E

split-complementary

#1F1673 #734E16 #3C7316

monochromatic

#07051A #110C40 #1F1673 #2D20A6 #3D2DD7

Accessibility & contrast

On white

14.78

#1F1673 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#1F1673 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1673

14.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1673	#FFFFFF	#000000	##FFFFFF
##1F1673	1.00	14.78	1.42	14.78
#FFFFFF	14.78	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C76

Deuteranopia (green-blind)

#002471

Tritanopia (blue-blind)

#003244

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1f1673;
/* rgb */ color: rgb(31, 22, 115);
/* oklch */ color: oklch(29.1% 0.149 276.2);

Tailwind

colors: {
  custom: {
    50: '#69559c',
    500: '#1f1673',
    950: '#000000',
  },
}

SCSS

$custom: #1f1673;
$custom-light: #69559c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1673",
  "rgb": {
    "r": 31,
    "g": 22,
    "b": 115
  },
  "hsl": {
    "h": 245.806,
    "s": 67.883,
    "l": 26.863
  },
  "oklch": {
    "l": 0.2914,
    "c": 0.14899,
    "h": 276.2
  },
  "luminance": 0.02103
}

Semantic roles & 50–950 ramp

primary

#1F1673

secondary

#9EA93C

accent

#EB3DDA

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1673

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

Preview Lab → · Contrast checker → · Palette generator →