#1C1D83#1C1D83

#1C1D83 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.8% C 0.163 H 271.8°. Best body text is #FFFFFF at 13.52:1 contrast (WCAG AA passes).

Color values

HEX	#1C1D83
RGB	rgb(28, 29, 131)
HSL	hsl(239, 65%, 31%)
HSV	hsv(239, 79%, 51%)
CMYK	cmyk(78.6%, 77.9%, 0%, 48.6%)
CIE-LAB	lab(19.07, 36.34, -56.42)
CIE-LCH	lch(19.07, 67.11, 302.79°)
OKLab	oklab(31.78% 0.0051 -0.1633)
OKLCH	oklch(31.78% 0.163 271.8)
XYZ	xyz(5.0136, 2.7638, 21.7376)
Luminance	0.0276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1D83 #83821C

analogous

#1C5083 #1C1D83 #4E1C83

triadic

#1C1D83 #831C1D #1D831C

tetradic

#1C1D83 #831C50 #83821C #1C834E

square

#1C1D83 #831C50 #83821C #1C834E

split-complementary

#1C1D83 #834E1C #50831C

monochromatic

#06071E #111251 #1C1D83 #2728B5 #4344D7

Accessibility & contrast

On white

13.52

#1C1D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1C1D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1D83

13.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1D83	#FFFFFF	#000000	##FFFFFF
##1C1D83	1.00	13.52	1.55	13.52
#FFFFFF	13.52	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003386

Deuteranopia (green-blind)

#002981

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1c1d83;
/* rgb */ color: rgb(28, 29, 131);
/* oklch */ color: oklch(31.8% 0.163 271.8);

Tailwind

colors: {
  custom: {
    50: '#6c5aa8',
    500: '#1c1d83',
    950: '#000000',
  },
}

SCSS

$custom: #1c1d83;
$custom-light: #6c5aa8;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1d83",
  "rgb": {
    "r": 28,
    "g": 29,
    "b": 131
  },
  "hsl": {
    "h": 239.417,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.31783,
    "c": 0.16342,
    "h": 271.8
  },
  "luminance": 0.02764
}

Semantic roles & 50–950 ramp

primary

#1C1D83

secondary

#B6B545

accent

#E640E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #1C1D83

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

Preview Lab → · Contrast checker → · Palette generator →