#1C1C8E#1C1C8E

#1C1C8E is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.9% C 0.178 H 271.0°. Best body text is #FFFFFF at 13.08:1 contrast (WCAG AA passes).

Color values

HEX	#1C1C8E
RGB	rgb(28, 28, 142)
HSL	hsl(240, 67%, 33%)
HSV	hsv(240, 80%, 56%)
CMYK	cmyk(80.3%, 80.3%, 0%, 44.3%)
CIE-LAB	lab(20.16, 40.69, -61.52)
CIE-LCH	lch(20.16, 73.76, 303.48°)
OKLab	oklab(32.93% 0.0032 -0.1781)
OKLCH	oklch(32.93% 0.178 271)
XYZ	xyz(5.7750, 3.0297, 25.8664)
Luminance	0.0303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1C8E #8E8E1C

analogous

#1C558E #1C1C8E #551C8E

triadic

#1C1C8E #8E1C1C #1C8E1C

tetradic

#1C1C8E #8E1C55 #8E8E1C #1C8E55

square

#1C1C8E #8E1C55 #8E8E1C #1C8E55

split-complementary

#1C1C8E #8E551C #558E1C

monochromatic

#080828 #12125B #1C1C8E #2626C1 #4949DB

Accessibility & contrast

On white

13.08

#1C1C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1C1C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1C8E

13.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1C8E	#FFFFFF	#000000	##FFFFFF
##1C1C8E	1.00	13.08	1.61	13.08
#FFFFFF	13.08	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003691

Deuteranopia (green-blind)

#002B8C

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1c1c8e;
/* rgb */ color: rgb(28, 28, 142);
/* oklch */ color: oklch(32.9% 0.178 271.0);

Tailwind

colors: {
  custom: {
    50: '#6f5bb0',
    500: '#1c1c8e',
    950: '#000000',
  },
}

SCSS

$custom: #1c1c8e;
$custom-light: #6f5bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1c8e",
  "rgb": {
    "r": 28,
    "g": 28,
    "b": 142
  },
  "hsl": {
    "h": 240,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.32929,
    "c": 0.17814,
    "h": 271
  },
  "luminance": 0.0303
}

Semantic roles & 50–950 ramp

primary

#1C1C8E

secondary

#BDBD49

accent

#EA3EEA

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #1C1C8E

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

Preview Lab → · Contrast checker → · Palette generator →