#1F1479#1F1479

#1F1479 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.6% C 0.158 H 275.5°. Best body text is #FFFFFF at 14.64:1 contrast (WCAG AA passes).

Color values

HEX	#1F1479
RGB	rgb(31, 20, 121)
HSL	hsl(247, 72%, 28%)
HSV	hsv(247, 83%, 47%)
CMYK	cmyk(74.4%, 83.5%, 0%, 52.5%)
CIE-LAB	lab(16.36, 38.18, -54.53)
CIE-LCH	lch(16.36, 66.57, 305.00°)
OKLab	oklab(29.59% 0.0153 -0.1577)
OKLCH	oklch(29.59% 0.158 275.5)
XYZ	xyz(4.2653, 2.1717, 18.2798)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1479 #6E7914

analogous

#143B79 #1F1479 #521479

triadic

#1F1479 #791F14 #14791F

tetradic

#1F1479 #79143B #6E7914 #147952

square

#1F1479 #79143B #6E7914 #147952

split-complementary

#1F1479 #795214 #3B7914

monochromatic

#07041A #120B44 #1F1479 #2C1DAE #3F2BDC

Accessibility & contrast

On white

14.64

#1F1479 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1F1479 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1479

14.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1479	#FFFFFF	#000000	##FFFFFF
##1F1479	1.00	14.64	1.43	14.64
#FFFFFF	14.64	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7C

Deuteranopia (green-blind)

#002477

Tritanopia (blue-blind)

#003347

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1f1479;
/* rgb */ color: rgb(31, 20, 121);
/* oklch */ color: oklch(29.6% 0.158 275.5);

Tailwind

colors: {
  custom: {
    50: '#6b55a1',
    500: '#1f1479',
    950: '#000000',
  },
}

SCSS

$custom: #1f1479;
$custom-light: #6b55a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1479",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 121
  },
  "hsl": {
    "h": 246.535,
    "s": 71.631,
    "l": 27.647
  },
  "oklch": {
    "l": 0.29592,
    "c": 0.1584,
    "h": 275.5
  },
  "luminance": 0.02172
}

Semantic roles & 50–950 ramp

primary

#1F1479

secondary

#A2AF3A

accent

#EE39DB

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1F1479

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

Preview Lab → · Contrast checker → · Palette generator →