#1C1DB0#1C1DB0

#1C1DB0 is a dark, highly saturated blue. Relative luminance 0.043; OKLCH L 37.2% C 0.217 H 268.9°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#1C1DB0
RGB	rgb(28, 29, 176)
HSL	hsl(240, 73%, 40%)
HSV	hsv(240, 84%, 69%)
CMYK	cmyk(84.1%, 83.5%, 0%, 31%)
CIE-LAB	lab(24.51, 51.17, -75.08)
CIE-LCH	lch(24.51, 90.86, 304.28°)
OKLab	oklab(37.16% -0.004 -0.2174)
OKLCH	oklch(37.16% 0.217 268.9)
XYZ	xyz(8.7520, 4.2591, 41.4267)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1DB0 #B0AF1C

analogous

#1C67B0 #1C1DB0 #651CB0

triadic

#1C1DB0 #B01C1D #1DB01C

tetradic

#1C1DB0 #B01C67 #B0AF1C #1CB065

square

#1C1DB0 #B01C67 #B0AF1C #1CB065

split-complementary

#1C1DB0 #B0651C #67B01C

monochromatic

#0B0C46 #14147B #1C1DB0 #2C2DDD #6161E6

Accessibility & contrast

On white

11.34

#1C1DB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1C1DB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1DB0

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1DB0	#FFFFFF	#000000	##FFFFFF
##1C1DB0	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B4

Deuteranopia (green-blind)

#0032AE

Tritanopia (blue-blind)

#004D69

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1c1db0;
/* rgb */ color: rgb(28, 29, 176);
/* oklch */ color: oklch(37.2% 0.217 268.9);

Tailwind

colors: {
  custom: {
    50: '#785ec9',
    500: '#1c1db0',
    950: '#000000',
  },
}

SCSS

$custom: #1c1db0;
$custom-light: #785ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1db0",
  "rgb": {
    "r": 28,
    "g": 29,
    "b": 176
  },
  "hsl": {
    "h": 239.595,
    "s": 72.549,
    "l": 40
  },
  "oklch": {
    "l": 0.37156,
    "c": 0.21741,
    "h": 268.9
  },
  "luminance": 0.0426
}

Semantic roles & 50–950 ramp

primary

#1C1DB0

secondary

#CACA5E

accent

#EE39EF

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #1C1DB0

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

Preview Lab → · Contrast checker → · Palette generator →