#1C1C8F#1C1C8F

#1C1C8F is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.0% C 0.179 H 271.0°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#1C1C8F
RGB	rgb(28, 28, 143)
HSL	hsl(240, 67%, 34%)
HSV	hsv(240, 80%, 56%)
CMYK	cmyk(80.4%, 80.4%, 0%, 43.9%)
CIE-LAB	lab(20.28, 41.03, -61.94)
CIE-LCH	lch(20.28, 74.30, 303.52°)
OKLab	oklab(33.05% 0.003 -0.1793)
OKLCH	oklch(33.05% 0.179 271)
XYZ	xyz(5.8504, 3.0599, 26.2636)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1C8F #8F8F1C

analogous

#1C558F #1C1C8F #551C8F

triadic

#1C1C8F #8F1C1C #1C8F1C

tetradic

#1C1C8F #8F1C55 #8F8F1C #1C8F55

square

#1C1C8F #8F1C55 #8F8F1C #1C8F55

split-complementary

#1C1C8F #8F551C #558F1C

monochromatic

#080829 #12125C #1C1C8F #2626C2 #4A4ADC

Accessibility & contrast

On white

13.03

#1C1C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1C1C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1C8F

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1C8F	#FFFFFF	#000000	##FFFFFF
##1C1C8F	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003792

Deuteranopia (green-blind)

#002B8D

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1c1c8f;
/* rgb */ color: rgb(28, 28, 143);
/* oklch */ color: oklch(33.0% 0.179 271.0);

Tailwind

colors: {
  custom: {
    50: '#6f5bb1',
    500: '#1c1c8f',
    950: '#000000',
  },
}

SCSS

$custom: #1c1c8f;
$custom-light: #6f5bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1c8f",
  "rgb": {
    "r": 28,
    "g": 28,
    "b": 143
  },
  "hsl": {
    "h": 240,
    "s": 67.251,
    "l": 33.529
  },
  "oklch": {
    "l": 0.33048,
    "c": 0.17937,
    "h": 271
  },
  "luminance": 0.03061
}

Semantic roles & 50–950 ramp

primary

#1C1C8F

secondary

#BEBE49

accent

#EA3EEA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1C1C8F

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

Preview Lab → · Contrast checker → · Palette generator →