#1C1F82#1C1F82

#1C1F82 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.0% C 0.160 H 271.6°. Best body text is #FFFFFF at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#1C1F82
RGB	rgb(28, 31, 130)
HSL	hsl(238, 65%, 31%)
HSV	hsv(238, 78%, 51%)
CMYK	cmyk(78.5%, 76.2%, 0%, 49%)
CIE-LAB	lab(19.38, 34.79, -55.28)
CIE-LCH	lch(19.38, 65.31, 302.19°)
OKLab	oklab(31.97% 0.0044 -0.16)
OKLCH	oklch(31.97% 0.16 271.6)
XYZ	xyz(4.9968, 2.8380, 21.3992)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1F82 #827F1C

analogous

#1C5282 #1C1F82 #4C1C82

triadic

#1C1F82 #821C1F #1F821C

tetradic

#1C1F82 #821C52 #827F1C #1C824C

square

#1C1F82 #821C52 #827F1C #1C824C

split-complementary

#1C1F82 #824C1C #52821C

monochromatic

#06071D #111350 #1C1F82 #272BB4 #4246D6

Accessibility & contrast

On white

13.39

#1C1F82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#1C1F82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1F82

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1F82	#FFFFFF	#000000	##FFFFFF
##1C1F82	1.00	13.39	1.57	13.39
#FFFFFF	13.39	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003485

Deuteranopia (green-blind)

#002A80

Tritanopia (blue-blind)

#003C4F

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1c1f82;
/* rgb */ color: rgb(28, 31, 130);
/* oklch */ color: oklch(32.0% 0.160 271.6);

Tailwind

colors: {
  custom: {
    50: '#6b5ca7',
    500: '#1c1f82',
    950: '#000000',
  },
}

SCSS

$custom: #1c1f82;
$custom-light: #6b5ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1f82",
  "rgb": {
    "r": 28,
    "g": 31,
    "b": 130
  },
  "hsl": {
    "h": 238.235,
    "s": 64.557,
    "l": 30.98
  },
  "oklch": {
    "l": 0.31971,
    "c": 0.16008,
    "h": 271.6
  },
  "luminance": 0.02839
}

Semantic roles & 50–950 ramp

primary

#1C1F82

secondary

#B5B244

accent

#E340E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1C1F82

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

Preview Lab → · Contrast checker → · Palette generator →