#1F1273#1F1273

#1F1273 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.6% C 0.153 H 276.7°. Best body text is #FFFFFF at 15.08:1 contrast (WCAG AA passes).

Color values

HEX	#1F1273
RGB	rgb(31, 18, 115)
HSL	hsl(248, 73%, 26%)
HSV	hsv(248, 84%, 45%)
CMYK	cmyk(73%, 84.3%, 0%, 54.9%)
CIE-LAB	lab(15.28, 37.24, -52.46)
CIE-LCH	lch(15.28, 64.33, 305.37°)
OKLab	oklab(28.63% 0.0179 -0.1516)
OKLCH	oklch(28.63% 0.153 276.7)
XYZ	xyz(3.8749, 1.9614, 16.3907)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1273 #667312

analogous

#123573 #1F1273 #4F1273

triadic

#1F1273 #731F12 #12731F

tetradic

#1F1273 #731235 #667312 #12734F

square

#1F1273 #731235 #667312 #12734F

split-complementary

#1F1273 #734F12 #357312

monochromatic

#07041A #110A3E #1F1273 #2D1AA8 #3C23DD

Accessibility & contrast

On white

15.08

#1F1273 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#1F1273 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1273

15.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1273	#FFFFFF	#000000	##FFFFFF
##1F1273	1.00	15.08	1.39	15.08
#FFFFFF	15.08	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A76

Deuteranopia (green-blind)

#002271

Tritanopia (blue-blind)

#003043

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1f1273;
/* rgb */ color: rgb(31, 18, 115);
/* oklch */ color: oklch(28.6% 0.153 276.7);

Tailwind

colors: {
  custom: {
    50: '#6a539c',
    500: '#1f1273',
    950: '#000000',
  },
}

SCSS

$custom: #1f1273;
$custom-light: #6a539c;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1273",
  "rgb": {
    "r": 31,
    "g": 18,
    "b": 115
  },
  "hsl": {
    "h": 248.041,
    "s": 72.932,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28629,
    "c": 0.15264,
    "h": 276.7
  },
  "luminance": 0.01962
}

Semantic roles & 50–950 ramp

primary

#1F1273

secondary

#9AAA37

accent

#F038D7

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1F1273

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

Preview Lab → · Contrast checker → · Palette generator →