#1C1D80#1C1D80

#1C1D80 is a dark, vivid blue. Relative luminance 0.027; OKLCH L 31.4% C 0.160 H 272.0°. Best body text is #FFFFFF at 13.66:1 contrast (WCAG AA passes).

Color values

HEX	#1C1D80
RGB	rgb(28, 29, 128)
HSL	hsl(239, 64%, 31%)
HSV	hsv(239, 78%, 50%)
CMYK	cmyk(78.1%, 77.3%, 0%, 49.8%)
CIE-LAB	lab(18.73, 35.29, -55.09)
CIE-LCH	lch(18.73, 65.42, 302.64°)
OKLab	oklab(31.44% 0.0057 -0.1595)
OKLCH	oklch(31.44% 0.16 272)
XYZ	xyz(4.8132, 2.6836, 20.6822)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1D80 #807F1C

analogous

#1C4F80 #1C1D80 #4D1C80

triadic

#1C1D80 #801C1D #1D801C

tetradic

#1C1D80 #801C4F #807F1C #1C804D

square

#1C1D80 #801C4F #807F1C #1C804D

split-complementary

#1C1D80 #804D1C #4F801C

monochromatic

#06061C #11124E #1C1D80 #2728B2 #4142D5

Accessibility & contrast

On white

13.66

#1C1D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#1C1D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1D80

13.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1D80	#FFFFFF	#000000	##FFFFFF
##1C1D80	1.00	13.66	1.54	13.66
#FFFFFF	13.66	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003283

Deuteranopia (green-blind)

#00297E

Tritanopia (blue-blind)

#003A4D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1c1d80;
/* rgb */ color: rgb(28, 29, 128);
/* oklch */ color: oklch(31.4% 0.160 272.0);

Tailwind

colors: {
  custom: {
    50: '#6b5aa6',
    500: '#1c1d80',
    950: '#000000',
  },
}

SCSS

$custom: #1c1d80;
$custom-light: #6b5aa6;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1d80",
  "rgb": {
    "r": 28,
    "g": 29,
    "b": 128
  },
  "hsl": {
    "h": 239.4,
    "s": 64.103,
    "l": 30.588
  },
  "oklch": {
    "l": 0.3144,
    "c": 0.15956,
    "h": 272
  },
  "luminance": 0.02684
}

Semantic roles & 50–950 ramp

primary

#1C1D80

secondary

#B3B244

accent

#E541E7

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08040F

muted

#7A797F

Preview Lab

Preview with #1C1D80

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

Preview Lab → · Contrast checker → · Palette generator →