#1C138A#1C138A

#1C138A is a dark, vivid blue. Relative luminance 0.025; OKLCH L 31.4% C 0.181 H 272.1°. Best body text is #FFFFFF at 13.91:1 contrast (WCAG AA passes).

Color values

HEX	#1C138A
RGB	rgb(28, 19, 138)
HSL	hsl(245, 76%, 31%)
HSV	hsv(245, 86%, 54%)
CMYK	cmyk(79.7%, 86.2%, 0%, 45.9%)
CIE-LAB	lab(18.13, 43.88, -62.39)
CIE-LCH	lch(18.13, 76.28, 305.12°)
OKLab	oklab(31.37% 0.0067 -0.1805)
OKLCH	oklch(31.37% 0.181 272.1)
XYZ	xyz(5.2977, 2.5470, 24.2522)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C138A #818A13

analogous

#13458A #1C138A #57138A

triadic

#1C138A #8A1C13 #138A1C

tetradic

#1C138A #8A1345 #818A13 #138A57

square

#1C138A #8A1345 #818A13 #138A57

split-complementary

#1C138A #8A5713 #458A13

monochromatic

#06041E #110C54 #1C138A #271AC0 #4234E3

Accessibility & contrast

On white

13.91

#1C138A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1C138A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C138A

13.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C138A	#FFFFFF	#000000	##FFFFFF
##1C138A	1.00	13.91	1.51	13.91
#FFFFFF	13.91	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328D

Deuteranopia (green-blind)

#002688

Tritanopia (blue-blind)

#003A51

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1c138a;
/* rgb */ color: rgb(28, 19, 138);
/* oklch */ color: oklch(31.4% 0.181 272.1);

Tailwind

colors: {
  custom: {
    50: '#6e55ae',
    500: '#1c138a',
    950: '#000000',
  },
}

SCSS

$custom: #1c138a;
$custom-light: #6e55ae;
$custom-dark: #000000;

JSON

{
  "hex": "#1c138a",
  "rgb": {
    "r": 28,
    "g": 19,
    "b": 138
  },
  "hsl": {
    "h": 244.538,
    "s": 75.796,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31374,
    "c": 0.18059,
    "h": 272.1
  },
  "luminance": 0.02548
}

Semantic roles & 50–950 ramp

primary

#1C138A

secondary

#B4BE3A

accent

#F235E4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #1C138A

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

Preview Lab → · Contrast checker → · Palette generator →