#1C138C#1C138C

#1C138C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.6% C 0.183 H 271.9°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#1C138C
RGB	rgb(28, 19, 140)
HSL	hsl(244, 76%, 31%)
HSV	hsv(244, 86%, 55%)
CMYK	cmyk(80%, 86.4%, 0%, 45.1%)
CIE-LAB	lab(18.39, 44.50, -63.21)
CIE-LCH	lch(18.39, 77.31, 305.15°)
OKLab	oklab(31.63% 0.0061 -0.1829)
OKLCH	oklch(31.63% 0.183 271.9)
XYZ	xyz(5.4438, 2.6055, 25.0219)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C138C #838C13

analogous

#13468C #1C138C #58138C

triadic

#1C138C #8C1C13 #138C1C

tetradic

#1C138C #8C1346 #838C13 #138C58

square

#1C138C #8C1346 #838C13 #138C58

split-complementary

#1C138C #8C5813 #468C13

monochromatic

#060420 #110C56 #1C138C #271AC2 #4336E4

Accessibility & contrast

On white

13.80

#1C138C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#1C138C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C138C

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C138C	#FFFFFF	#000000	##FFFFFF
##1C138C	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328F

Deuteranopia (green-blind)

#00278A

Tritanopia (blue-blind)

#003B52

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1c138c;
/* rgb */ color: rgb(28, 19, 140);
/* oklch */ color: oklch(31.6% 0.183 271.9);

Tailwind

colors: {
  custom: {
    50: '#6f56af',
    500: '#1c138c',
    950: '#000000',
  },
}

SCSS

$custom: #1c138c;
$custom-light: #6f56af;
$custom-dark: #000000;

JSON

{
  "hex": "#1c138c",
  "rgb": {
    "r": 28,
    "g": 19,
    "b": 140
  },
  "hsl": {
    "h": 244.463,
    "s": 76.101,
    "l": 31.176
  },
  "oklch": {
    "l": 0.31626,
    "c": 0.18295,
    "h": 271.9
  },
  "luminance": 0.02606
}

Semantic roles & 50–950 ramp

primary

#1C138C

secondary

#B6C03B

accent

#F335E5

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090311

muted

#7B7880

Preview Lab

Preview with #1C138C

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

Preview Lab → · Contrast checker → · Palette generator →