#1C138E#1C138E

#1C138E is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.9% C 0.185 H 271.7°. Best body text is #FFFFFF at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#1C138E
RGB	rgb(28, 19, 142)
HSL	hsl(244, 76%, 32%)
HSV	hsv(244, 87%, 56%)
CMYK	cmyk(80.3%, 86.6%, 0%, 44.3%)
CIE-LAB	lab(18.65, 45.13, -64.03)
CIE-LCH	lch(18.65, 78.33, 305.17°)
OKLab	oklab(31.88% 0.0056 -0.1852)
OKLCH	oklch(31.88% 0.185 271.7)
XYZ	xyz(5.5926, 2.6650, 25.8056)
Luminance	0.0267 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C138E #858E13

analogous

#13488E #1C138E #5A138E

triadic

#1C138E #8E1C13 #138E1C

tetradic

#1C138E #8E1348 #858E13 #138E5A

square

#1C138E #8E1348 #858E13 #138E5A

split-complementary

#1C138E #8E5A13 #488E13

monochromatic

#070522 #110C58 #1C138E #271AC4 #4437E4

Accessibility & contrast

On white

13.70

#1C138E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1C138E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C138E

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C138E	#FFFFFF	#000000	##FFFFFF
##1C138E	1.00	13.70	1.53	13.70
#FFFFFF	13.70	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003391

Deuteranopia (green-blind)

#00278C

Tritanopia (blue-blind)

#003C53

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1c138e;
/* rgb */ color: rgb(28, 19, 142);
/* oklch */ color: oklch(31.9% 0.185 271.7);

Tailwind

colors: {
  custom: {
    50: '#6f56b0',
    500: '#1c138e',
    950: '#000000',
  },
}

SCSS

$custom: #1c138e;
$custom-light: #6f56b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c138e",
  "rgb": {
    "r": 28,
    "g": 19,
    "b": 142
  },
  "hsl": {
    "h": 244.39,
    "s": 76.398,
    "l": 31.569
  },
  "oklch": {
    "l": 0.31879,
    "c": 0.1853,
    "h": 271.7
  },
  "luminance": 0.02666
}

Semantic roles & 50–950 ramp

primary

#1C138E

secondary

#B8C23B

accent

#F335E5

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1C138E

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

Preview Lab → · Contrast checker → · Palette generator →