#1F1477#1F1477

#1F1477 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.4% C 0.156 H 275.8°. Best body text is #FFFFFF at 14.74:1 contrast (WCAG AA passes).

Color values

HEX	#1F1477
RGB	rgb(31, 20, 119)
HSL	hsl(247, 71%, 27%)
HSV	hsv(247, 83%, 47%)
CMYK	cmyk(73.9%, 83.2%, 0%, 53.3%)
CIE-LAB	lab(16.12, 37.53, -53.65)
CIE-LCH	lch(16.12, 65.47, 304.97°)
OKLab	oklab(29.35% 0.0158 -0.1551)
OKLCH	oklch(29.35% 0.156 275.8)
XYZ	xyz(4.1439, 2.1231, 17.6406)
Luminance	0.0212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1477 #6C7714

analogous

#143A77 #1F1477 #511477

triadic

#1F1477 #771F14 #14771F

tetradic

#1F1477 #77143A #6C7714 #147751

square

#1F1477 #77143A #6C7714 #147751

split-complementary

#1F1477 #775114 #3A7714

monochromatic

#07041A #110B43 #1F1477 #2D1DAB #3E2ADB

Accessibility & contrast

On white

14.74

#1F1477 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#1F1477 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1477

14.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1477	#FFFFFF	#000000	##FFFFFF
##1F1477	1.00	14.74	1.42	14.74
#FFFFFF	14.74	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C7A

Deuteranopia (green-blind)

#002475

Tritanopia (blue-blind)

#003346

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1f1477;
/* rgb */ color: rgb(31, 20, 119);
/* oklch */ color: oklch(29.4% 0.156 275.8);

Tailwind

colors: {
  custom: {
    50: '#6a559f',
    500: '#1f1477',
    950: '#000000',
  },
}

SCSS

$custom: #1f1477;
$custom-light: #6a559f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1477",
  "rgb": {
    "r": 31,
    "g": 20,
    "b": 119
  },
  "hsl": {
    "h": 246.667,
    "s": 71.223,
    "l": 27.255
  },
  "oklch": {
    "l": 0.29352,
    "c": 0.15591,
    "h": 275.8
  },
  "luminance": 0.02124
}

Semantic roles & 50–950 ramp

primary

#1F1477

secondary

#A0AD3A

accent

#EE3ADA

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030F

muted

#7A787E

Preview Lab

Preview with #1F1477

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

Preview Lab → · Contrast checker → · Palette generator →