#1C1DA9#1C1DA9

#1C1DA9 is a dark, highly saturated blue. Relative luminance 0.040; OKLCH L 36.3% C 0.209 H 269.3°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#1C1DA9
RGB	rgb(28, 29, 169)
HSL	hsl(240, 72%, 39%)
HSV	hsv(240, 83%, 66%)
CMYK	cmyk(83.4%, 82.8%, 0%, 33.7%)
CIE-LAB	lab(23.64, 48.98, -72.32)
CIE-LCH	lch(23.64, 87.34, 304.11°)
OKLab	oklab(36.3% -0.0026 -0.2094)
OKLCH	oklch(36.3% 0.209 269.3)
XYZ	xyz(8.0772, 3.9892, 37.8727)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C1DA9 #A9A81C

analogous

#1C63A9 #1C1DA9 #611CA9

triadic

#1C1DA9 #A91C1D #1DA91C

tetradic

#1C1DA9 #A91C63 #A9A81C #1CA961

square

#1C1DA9 #A91C63 #A9A81C #1CA961

split-complementary

#1C1DA9 #A9611C #63A91C

monochromatic

#0B0B40 #131474 #1C1DA9 #2728DB #5B5CE4

Accessibility & contrast

On white

11.68

#1C1DA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#1C1DA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C1DA9

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C1DA9	#FFFFFF	#000000	##FFFFFF
##1C1DA9	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FAD

Deuteranopia (green-blind)

#0031A7

Tritanopia (blue-blind)

#004A65

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1c1da9;
/* rgb */ color: rgb(28, 29, 169);
/* oklch */ color: oklch(36.3% 0.209 269.3);

Tailwind

colors: {
  custom: {
    50: '#765dc4',
    500: '#1c1da9',
    950: '#000000',
  },
}

SCSS

$custom: #1c1da9;
$custom-light: #765dc4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c1da9",
  "rgb": {
    "r": 28,
    "g": 29,
    "b": 169
  },
  "hsl": {
    "h": 239.574,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.363,
    "c": 0.20941,
    "h": 269.3
  },
  "luminance": 0.0399
}

Semantic roles & 50–950 ramp

primary

#1C1DA9

secondary

#C8C759

accent

#ED39EE

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0A0413

muted

#7C7982

Preview Lab

Preview with #1C1DA9

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

Preview Lab → · Contrast checker → · Palette generator →