#1C20A9#1C20A9

#1C20A9 is a dark, highly saturated blue. Relative luminance 0.041; OKLCH L 36.7% C 0.207 H 269.1°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#1C20A9
RGB	rgb(28, 32, 169)
HSL	hsl(238, 72%, 39%)
HSV	hsv(238, 83%, 66%)
CMYK	cmyk(83.4%, 81.1%, 0%, 33.7%)
CIE-LAB	lab(24.14, 47.50, -71.48)
CIE-LCH	lch(24.14, 85.82, 303.61°)
OKLab	oklab(36.65% -0.0032 -0.207)
OKLCH	oklch(36.65% 0.207 269.1)
XYZ	xyz(8.1544, 4.1435, 37.8984)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C20A9 #A9A51C

analogous

#1C66A9 #1C20A9 #5E1CA9

triadic

#1C20A9 #A91C20 #20A91C

tetradic

#1C20A9 #A91C66 #A9A51C #1CA95E

square

#1C20A9 #A91C66 #A9A51C #1CA95E

split-complementary

#1C20A9 #A95E1C #66A91C

monochromatic

#0B0C40 #131674 #1C20A9 #272CDB #5B5FE4

Accessibility & contrast

On white

11.48

#1C20A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1C20A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C20A9

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C20A9	#FFFFFF	#000000	##FFFFFF
##1C20A9	1.00	11.48	1.83	11.48
#FFFFFF	11.48	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AD

Deuteranopia (green-blind)

#0032A7

Tritanopia (blue-blind)

#004B65

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1c20a9;
/* rgb */ color: rgb(28, 32, 169);
/* oklch */ color: oklch(36.7% 0.207 269.1);

Tailwind

colors: {
  custom: {
    50: '#765fc4',
    500: '#1c20a9',
    950: '#000000',
  },
}

SCSS

$custom: #1c20a9;
$custom-light: #765fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c20a9",
  "rgb": {
    "r": 28,
    "g": 32,
    "b": 169
  },
  "hsl": {
    "h": 238.298,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.36652,
    "c": 0.20704,
    "h": 269.1
  },
  "luminance": 0.04144
}

Semantic roles & 50–950 ramp

primary

#1C20A9

secondary

#C8C559

accent

#E939EE

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0A0513

muted

#7C7982

Preview Lab

Preview with #1C20A9

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

Preview Lab → · Contrast checker → · Palette generator →