#1C158E#1C158E

#1C158E is a dark, vivid blue. Relative luminance 0.027; OKLCH L 32.1% C 0.184 H 271.6°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#1C158E
RGB	rgb(28, 21, 142)
HSL	hsl(243, 74%, 32%)
HSV	hsv(243, 85%, 56%)
CMYK	cmyk(80.3%, 85.2%, 0%, 44.3%)
CIE-LAB	lab(18.95, 44.23, -63.53)
CIE-LCH	lch(18.95, 77.40, 304.85°)
OKLab	oklab(32.09% 0.0052 -0.1838)
OKLCH	oklch(32.09% 0.184 271.6)
XYZ	xyz(5.6279, 2.7356, 25.8173)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C158E #878E15

analogous

#154B8E #1C158E #59158E

triadic

#1C158E #8E1C15 #158E1C

tetradic

#1C158E #8E154B #878E15 #158E59

square

#1C158E #8E154B #878E15 #158E59

split-complementary

#1C158E #8E5915 #4B8E15

monochromatic

#070523 #110D59 #1C158E #271DC3 #453BE2

Accessibility & contrast

On white

13.57

#1C158E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1C158E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C158E

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C158E	#FFFFFF	#000000	##FFFFFF
##1C158E	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003491

Deuteranopia (green-blind)

#00288C

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1c158e;
/* rgb */ color: rgb(28, 21, 142);
/* oklch */ color: oklch(32.1% 0.184 271.6);

Tailwind

colors: {
  custom: {
    50: '#6f57b0',
    500: '#1c158e',
    950: '#000000',
  },
}

SCSS

$custom: #1c158e;
$custom-light: #6f57b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c158e",
  "rgb": {
    "r": 28,
    "g": 21,
    "b": 142
  },
  "hsl": {
    "h": 243.471,
    "s": 74.233,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32087,
    "c": 0.18387,
    "h": 271.6
  },
  "luminance": 0.02736
}

Semantic roles & 50–950 ramp

primary

#1C158E

secondary

#BAC23D

accent

#F137E6

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #1C158E

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

Preview Lab → · Contrast checker → · Palette generator →