#1F0F70#1F0F70

#1F0F70 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.9% C 0.151 H 277.7°. Best body text is #FFFFFF at 15.43:1 contrast (WCAG AA passes).

Color values

HEX	#1F0F70
RGB	rgb(31, 15, 112)
HSL	hsl(250, 76%, 25%)
HSV	hsv(250, 87%, 44%)
CMYK	cmyk(72.3%, 86.6%, 0%, 56.1%)
CIE-LAB	lab(14.41, 37.74, -51.95)
CIE-LCH	lch(14.41, 64.21, 306.00°)
OKLab	oklab(27.92% 0.0202 -0.1501)
OKLCH	oklch(27.92% 0.151 277.7)
XYZ	xyz(3.6596, 1.8025, 15.4811)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F0F70 #60700F

analogous

#0F2F70 #1F0F70 #500F70

triadic

#1F0F70 #701F0F #0F701F

tetradic

#1F0F70 #700F2F #60700F #0F7050

square

#1F0F70 #700F2F #60700F #0F7050

split-complementary

#1F0F70 #70500F #2F700F

monochromatic

#07041B #10083A #1F0F70 #2E16A6 #3D1DDC

Accessibility & contrast

On white

15.43

#1F0F70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1F0F70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F0F70

15.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F0F70	#FFFFFF	#000000	##FFFFFF
##1F0F70	1.00	15.43	1.36	15.43
#FFFFFF	15.43	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002873

Deuteranopia (green-blind)

#00206E

Tritanopia (blue-blind)

#002E41

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1f0f70;
/* rgb */ color: rgb(31, 15, 112);
/* oklch */ color: oklch(27.9% 0.151 277.7);

Tailwind

colors: {
  custom: {
    50: '#69519a',
    500: '#1f0f70',
    950: '#000000',
  },
}

SCSS

$custom: #1f0f70;
$custom-light: #69519a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f0f70",
  "rgb": {
    "r": 31,
    "g": 15,
    "b": 112
  },
  "hsl": {
    "h": 249.897,
    "s": 76.378,
    "l": 24.902
  },
  "oklch": {
    "l": 0.27921,
    "c": 0.15142,
    "h": 277.7
  },
  "luminance": 0.01803
}

Semantic roles & 50–950 ramp

primary

#1F0F70

secondary

#95A833

accent

#F335D4

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #1F0F70

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

Preview Lab → · Contrast checker → · Palette generator →