#1C1699#1C1699

#1C1699 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.6% C 0.196 H 270.6°. Best body text is #FFFFFF at 12.93:1 contrast (WCAG AA passes).

Color values

HEX	#1C1699
RGB	rgb(28, 22, 153)
HSL	hsl(243, 75%, 34%)
HSV	hsv(243, 86%, 60%)
CMYK	cmyk(81.7%, 85.6%, 0%, 40%)
CIE-LAB	lab(20.52, 47.21, -67.74)
CIE-LCH	lch(20.52, 82.57, 304.87°)
OKLab	oklab(33.57% 0.0022 -0.196)
OKLCH	oklch(33.57% 0.196 270.6)
XYZ	xyz(6.5136, 3.1199, 30.3897)
Luminance	0.0312 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1699 #939916

analogous

#165299 #1C1699 #5E1699

triadic

#1C1699 #991C16 #16991C

tetradic

#1C1699 #991652 #939916 #16995E

square

#1C1699 #991652 #939916 #16995E

split-complementary

#1C1699 #995E16 #529916

monochromatic

#08072E #120E63 #1C1699 #261ECF #4C45E4

Accessibility & contrast

On white

12.93

#1C1699 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1C1699 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1699

12.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1699	#FFFFFF	#000000	##FFFFFF
##1C1699	1.00	12.93	1.62	12.93
#FFFFFF	12.93	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00389C

Deuteranopia (green-blind)

#002B97

Tritanopia (blue-blind)

#00415A

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1c1699;
/* rgb */ color: rgb(28, 22, 153);
/* oklch */ color: oklch(33.6% 0.196 270.6);

Tailwind

colors: {
  custom: {
    50: '#7258b8',
    500: '#1c1699',
    950: '#000000',
  },
}

SCSS

$custom: #1c1699;
$custom-light: #7258b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1699",
  "rgb": {
    "r": 28,
    "g": 22,
    "b": 153
  },
  "hsl": {
    "h": 242.748,
    "s": 74.857,
    "l": 34.314
  },
  "oklch": {
    "l": 0.33568,
    "c": 0.19603,
    "h": 270.6
  },
  "luminance": 0.03121
}

Semantic roles & 50–950 ramp

primary

#1C1699

secondary

#BFC546

accent

#F136E9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1C1699

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

Preview Lab → · Contrast checker → · Palette generator →