#1F1980#1F1980

#1F1980 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.1% C 0.163 H 274.0°. Best body text is #FFFFFF at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#1F1980
RGB	rgb(31, 25, 128)
HSL	hsl(243, 67%, 30%)
HSV	hsv(243, 80%, 50%)
CMYK	cmyk(75.8%, 80.5%, 0%, 49.8%)
CIE-LAB	lab(18.12, 37.85, -56.09)
CIE-LCH	lch(18.12, 67.67, 304.01°)
OKLab	oklab(31.06% 0.0113 -0.1623)
OKLCH	oklch(31.06% 0.163 274)
XYZ	xyz(4.8077, 2.5446, 20.6557)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F1980 #7A8019

analogous

#194780 #1F1980 #521980

triadic

#1F1980 #801F19 #19801F

tetradic

#1F1980 #801947 #7A8019 #198052

square

#1F1980 #801947 #7A8019 #198052

split-complementary

#1F1980 #805219 #478019

monochromatic

#06051A #130F4D #1F1980 #2B23B3 #443BD9

Accessibility & contrast

On white

13.92

#1F1980 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1F1980 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F1980

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F1980	#FFFFFF	#000000	##FFFFFF
##1F1980	1.00	13.92	1.51	13.92
#FFFFFF	13.92	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003183

Deuteranopia (green-blind)

#00277E

Tritanopia (blue-blind)

#00384C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1f1980;
/* rgb */ color: rgb(31, 25, 128);
/* oklch */ color: oklch(31.1% 0.163 274.0);

Tailwind

colors: {
  custom: {
    50: '#6c58a6',
    500: '#1f1980',
    950: '#000000',
  },
}

SCSS

$custom: #1f1980;
$custom-light: #6c58a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f1980",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 128
  },
  "hsl": {
    "h": 243.495,
    "s": 67.32,
    "l": 30
  },
  "oklch": {
    "l": 0.31062,
    "c": 0.16265,
    "h": 274
  },
  "luminance": 0.02545
}

Semantic roles & 50–950 ramp

primary

#1F1980

secondary

#ADB441

accent

#EA3EE0

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #1F1980

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

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