#1C1F87#1C1F87

#1C1F87 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.5% C 0.167 H 271.2°. Best body text is #FFFFFF at 13.16:1 contrast (WCAG AA passes).

Color values

HEX	#1C1F87
RGB	rgb(28, 31, 135)
HSL	hsl(238, 66%, 32%)
HSV	hsv(238, 79%, 53%)
CMYK	cmyk(79.3%, 77%, 0%, 47.1%)
CIE-LAB	lab(19.95, 36.57, -57.50)
CIE-LCH	lch(19.95, 68.14, 302.46°)
OKLab	oklab(32.54% 0.0035 -0.1665)
OKLCH	oklch(32.54% 0.167 271.2)
XYZ	xyz(5.3406, 2.9755, 23.2098)
Luminance	0.0298 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1F87 #87841C

analogous

#1C5587 #1C1F87 #4F1C87

triadic

#1C1F87 #871C1F #1F871C

tetradic

#1C1F87 #871C55 #87841C #1C874F

square

#1C1F87 #871C55 #87841C #1C874F

split-complementary

#1C1F87 #874F1C #55871C

monochromatic

#070822 #111354 #1C1F87 #272BBA #4549D8

Accessibility & contrast

On white

13.16

#1C1F87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1C1F87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1F87

13.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1F87	#FFFFFF	#000000	##FFFFFF
##1C1F87	1.00	13.16	1.60	13.16
#FFFFFF	13.16	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358A

Deuteranopia (green-blind)

#002B85

Tritanopia (blue-blind)

#003E51

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1c1f87;
/* rgb */ color: rgb(28, 31, 135);
/* oklch */ color: oklch(32.5% 0.167 271.2);

Tailwind

colors: {
  custom: {
    50: '#6c5cab',
    500: '#1c1f87',
    950: '#000000',
  },
}

SCSS

$custom: #1c1f87;
$custom-light: #6c5cab;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1f87",
  "rgb": {
    "r": 28,
    "g": 31,
    "b": 135
  },
  "hsl": {
    "h": 238.318,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32537,
    "c": 0.16652,
    "h": 271.2
  },
  "luminance": 0.02976
}

Semantic roles & 50–950 ramp

primary

#1C1F87

secondary

#BAB745

accent

#E43FE9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1C1F87

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

Preview Lab → · Contrast checker → · Palette generator →