#1F1987#1F1987

#1F1987 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.171 H 273.2°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F1987
RGB	rgb(31, 25, 135)
HSL	hsl(243, 69%, 31%)
HSV	hsv(243, 81%, 53%)
CMYK	cmyk(77%, 81.5%, 0%, 47.1%)
CIE-LAB	lab(18.95, 40.18, -59.14)
CIE-LCH	lch(18.95, 71.50, 304.20°)
OKLab	oklab(31.89% 0.0096 -0.1711)
OKLCH	oklch(31.89% 0.171 273.2)
XYZ	xyz(5.2844, 2.7353, 23.1664)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1987 #818719

analogous

#194A87 #1F1987 #561987

triadic

#1F1987 #871F19 #19871F

tetradic

#1F1987 #87194A #818719 #198756

square

#1F1987 #87194A #818719 #198756

split-complementary

#1F1987 #875619 #4A8719

monochromatic

#070620 #130F53 #1F1987 #2B23BB #483FDB

Accessibility & contrast

On white

13.57

#1F1987 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1F1987 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1987

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1987	#FFFFFF	#000000	##FFFFFF
##1F1987	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00338A

Deuteranopia (green-blind)

#002985

Tritanopia (blue-blind)

#003B50

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f1987;
/* rgb */ color: rgb(31, 25, 135);
/* oklch */ color: oklch(31.9% 0.171 273.2);

Tailwind

colors: {
  custom: {
    50: '#6e59ab',
    500: '#1f1987',
    950: '#000000',
  },
}

SCSS

$custom: #1f1987;
$custom-light: #6e59ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1987",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 135
  },
  "hsl": {
    "h": 243.273,
    "s": 68.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.31887,
    "c": 0.17137,
    "h": 273.2
  },
  "luminance": 0.02736
}

Semantic roles & 50–950 ramp

primary

#1F1987

secondary

#B4BA41

accent

#EC3CE2

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1F1987

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

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