#1F1983#1F1983

#1F1983 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.4% C 0.166 H 273.6°. Best body text is #FFFFFF at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#1F1983
RGB	rgb(31, 25, 131)
HSL	hsl(243, 68%, 31%)
HSV	hsv(243, 81%, 51%)
CMYK	cmyk(76.3%, 80.9%, 0%, 48.6%)
CIE-LAB	lab(18.47, 38.86, -57.41)
CIE-LCH	lch(18.47, 69.32, 304.09°)
OKLab	oklab(31.41% 0.0105 -0.1661)
OKLCH	oklch(31.41% 0.166 273.6)
XYZ	xyz(5.0081, 2.6247, 21.7110)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1983 #7D8319

analogous

#194883 #1F1983 #541983

triadic

#1F1983 #831F19 #19831F

tetradic

#1F1983 #831948 #7D8319 #198354

square

#1F1983 #831948 #7D8319 #198354

split-complementary

#1F1983 #835419 #488319

monochromatic

#07051C #130F50 #1F1983 #2B23B6 #453DDA

Accessibility & contrast

On white

13.77

#1F1983 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1F1983 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1983

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1983	#FFFFFF	#000000	##FFFFFF
##1F1983	1.00	13.77	1.53	13.77
#FFFFFF	13.77	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003286

Deuteranopia (green-blind)

#002881

Tritanopia (blue-blind)

#00394E

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1f1983;
/* rgb */ color: rgb(31, 25, 131);
/* oklch */ color: oklch(31.4% 0.166 273.6);

Tailwind

colors: {
  custom: {
    50: '#6d58a8',
    500: '#1f1983',
    950: '#000000',
  },
}

SCSS

$custom: #1f1983;
$custom-light: #6d58a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1983",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 131
  },
  "hsl": {
    "h": 243.396,
    "s": 67.949,
    "l": 30.588
  },
  "oklch": {
    "l": 0.31414,
    "c": 0.16641,
    "h": 273.6
  },
  "luminance": 0.02625
}

Semantic roles & 50–950 ramp

primary

#1F1983

secondary

#B0B741

accent

#EB3DE1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1F1983

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

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