#1C1371#1C1371

#1C1371 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.3% C 0.150 H 275.2°. Best body text is #FFFFFF at 15.21:1 contrast (WCAG AA passes).

Color values

HEX	#1C1371
RGB	rgb(28, 19, 113)
HSL	hsl(246, 71%, 26%)
HSV	hsv(246, 83%, 44%)
CMYK	cmyk(75.2%, 83.2%, 0%, 55.7%)
CIE-LAB	lab(14.98, 35.80, -51.67)
CIE-LCH	lch(14.98, 62.86, 304.72°)
OKLab	oklab(28.28% 0.0136 -0.1494)
OKLCH	oklch(28.28% 0.15 275.2)
XYZ	xyz(3.6914, 1.9045, 15.7927)
Luminance	0.0191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1371 #687113

analogous

#133971 #1C1371 #4B1371

triadic

#1C1371 #711C13 #13711C

tetradic

#1C1371 #711339 #687113 #13714B

square

#1C1371 #711339 #687113 #13714B

split-complementary

#1C1371 #714B13 #397113

monochromatic

#06041A #0F0A3D #1C1371 #291CA5 #3625DA

Accessibility & contrast

On white

15.21

#1C1371 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1C1371 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1371

15.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1371	#FFFFFF	#000000	##FFFFFF
##1C1371	1.00	15.21	1.38	15.21
#FFFFFF	15.21	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A74

Deuteranopia (green-blind)

#00216F

Tritanopia (blue-blind)

#003042

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1c1371;
/* rgb */ color: rgb(28, 19, 113);
/* oklch */ color: oklch(28.3% 0.150 275.2);

Tailwind

colors: {
  custom: {
    50: '#68539b',
    500: '#1c1371',
    950: '#000000',
  },
}

SCSS

$custom: #1c1371;
$custom-light: #68539b;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1371",
  "rgb": {
    "r": 28,
    "g": 19,
    "b": 113
  },
  "hsl": {
    "h": 245.745,
    "s": 71.212,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28284,
    "c": 0.15003,
    "h": 275.2
  },
  "luminance": 0.01905
}

Semantic roles & 50–950 ramp

primary

#1C1371

secondary

#9DA838

accent

#EE3ADD

background

#F6F4F9

surface

#ECE7F2

border

#C7C3CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1C1371

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

Preview Lab → · Contrast checker → · Palette generator →