#1C1F84#1C1F84

#1C1F84 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.2% C 0.163 H 271.4°. Best body text is #FFFFFF at 13.30:1 contrast (WCAG AA passes).

Color values

HEX	#1C1F84
RGB	rgb(28, 31, 132)
HSL	hsl(238, 65%, 31%)
HSV	hsv(238, 79%, 52%)
CMYK	cmyk(78.8%, 76.5%, 0%, 48.2%)
CIE-LAB	lab(19.61, 35.51, -56.17)
CIE-LCH	lch(19.61, 66.45, 302.30°)
OKLab	oklab(32.2% 0.0041 -0.1626)
OKLCH	oklch(32.2% 0.163 271.4)
XYZ	xyz(5.1323, 2.8922, 22.1131)
Luminance	0.0289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1F84 #84811C

analogous

#1C5384 #1C1F84 #4D1C84

triadic

#1C1F84 #841C1F #1F841C

tetradic

#1C1F84 #841C53 #84811C #1C844D

square

#1C1F84 #841C53 #84811C #1C844D

split-complementary

#1C1F84 #844D1C #53841C

monochromatic

#07071F #111352 #1C1F84 #272BB6 #4347D7

Accessibility & contrast

On white

13.30

#1C1F84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1C1F84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1F84

13.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1F84	#FFFFFF	#000000	##FFFFFF
##1C1F84	1.00	13.30	1.58	13.30
#FFFFFF	13.30	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003587

Deuteranopia (green-blind)

#002A82

Tritanopia (blue-blind)

#003C50

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1c1f84;
/* rgb */ color: rgb(28, 31, 132);
/* oklch */ color: oklch(32.2% 0.163 271.4);

Tailwind

colors: {
  custom: {
    50: '#6c5ca9',
    500: '#1c1f84',
    950: '#000000',
  },
}

SCSS

$custom: #1c1f84;
$custom-light: #6c5ca9;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1f84",
  "rgb": {
    "r": 28,
    "g": 31,
    "b": 132
  },
  "hsl": {
    "h": 238.269,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32196,
    "c": 0.16267,
    "h": 271.4
  },
  "luminance": 0.02893
}

Semantic roles & 50–950 ramp

primary

#1C1F84

secondary

#B7B445

accent

#E340E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1C1F84

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

Preview Lab → · Contrast checker → · Palette generator →