#1C1687#1C1687

#1C1687 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.3% C 0.175 H 272.2°. Best body text is #FFFFFF at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#1C1687
RGB	rgb(28, 22, 135)
HSL	hsl(243, 72%, 31%)
HSV	hsv(243, 84%, 53%)
CMYK	cmyk(79.3%, 83.7%, 0%, 47.1%)
CIE-LAB	lab(18.23, 41.51, -60.34)
CIE-LCH	lch(18.23, 73.24, 304.52°)
OKLab	oklab(31.33% 0.0067 -0.1746)
OKLCH	oklch(31.33% 0.175 272.2)
XYZ	xyz(5.1375, 2.5694, 23.1422)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1687 #818716

analogous

#164887 #1C1687 #541687

triadic

#1C1687 #871C16 #16871C

tetradic

#1C1687 #871648 #818716 #168754

square

#1C1687 #871648 #818716 #168754

split-complementary

#1C1687 #875416 #488716

monochromatic

#06051E #110D52 #1C1687 #271FBC #4239DF

Accessibility & contrast

On white

13.87

#1C1687 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1C1687 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1687

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1687	#FFFFFF	#000000	##FFFFFF
##1C1687	1.00	13.87	1.51	13.87
#FFFFFF	13.87	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328A

Deuteranopia (green-blind)

#002785

Tritanopia (blue-blind)

#003A50

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1c1687;
/* rgb */ color: rgb(28, 22, 135);
/* oklch */ color: oklch(31.3% 0.175 272.2);

Tailwind

colors: {
  custom: {
    50: '#6d57ab',
    500: '#1c1687',
    950: '#000000',
  },
}

SCSS

$custom: #1c1687;
$custom-light: #6d57ab;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1687",
  "rgb": {
    "r": 28,
    "g": 22,
    "b": 135
  },
  "hsl": {
    "h": 243.186,
    "s": 71.975,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31333,
    "c": 0.17473,
    "h": 272.2
  },
  "luminance": 0.0257
}

Semantic roles & 50–950 ramp

primary

#1C1687

secondary

#B4BB3E

accent

#EF39E5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080310

muted

#7B787F

Preview Lab

Preview with #1C1687

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

Preview Lab → · Contrast checker → · Palette generator →