#1C24A9#1C24A9

#1C24A9 is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.2% C 0.204 H 268.9°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#1C24A9
RGB	rgb(28, 36, 169)
HSL	hsl(237, 72%, 39%)
HSV	hsv(237, 83%, 66%)
CMYK	cmyk(83.4%, 78.7%, 0%, 33.7%)
CIE-LAB	lab(24.87, 45.40, -70.28)
CIE-LCH	lch(24.87, 83.67, 302.87°)
OKLab	oklab(37.16% -0.0041 -0.2036)
OKLCH	oklch(37.16% 0.204 268.9)
XYZ	xyz(8.2687, 4.3722, 37.9365)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C24A9 #A9A11C

analogous

#1C6AA9 #1C24A9 #5A1CA9

triadic

#1C24A9 #A91C24 #24A91C

tetradic

#1C24A9 #A91C6A #A9A11C #1CA95A

square

#1C24A9 #A91C6A #A9A11C #1CA95A

split-complementary

#1C24A9 #A95A1C #6AA91C

monochromatic

#0B0E40 #131974 #1C24A9 #2731DB #5B63E4

Accessibility & contrast

On white

11.20

#1C24A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1C24A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C24A9

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C24A9	#FFFFFF	#000000	##FFFFFF
##1C24A9	1.00	11.20	1.87	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042AD

Deuteranopia (green-blind)

#0034A7

Tritanopia (blue-blind)

#004D66

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1c24a9;
/* rgb */ color: rgb(28, 36, 169);
/* oklch */ color: oklch(37.2% 0.204 268.9);

Tailwind

colors: {
  custom: {
    50: '#7561c4',
    500: '#1c24a9',
    950: '#000000',
  },
}

SCSS

$custom: #1c24a9;
$custom-light: #7561c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c24a9",
  "rgb": {
    "r": 28,
    "g": 36,
    "b": 169
  },
  "hsl": {
    "h": 236.596,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.3716,
    "c": 0.20364,
    "h": 268.9
  },
  "luminance": 0.04373
}

Semantic roles & 50–950 ramp

primary

#1C24A9

secondary

#C8C259

accent

#E439EE

background

#F7F5FC

surface

#EEEAF8

border

#C9C6D1

text

#0A0513

muted

#7C7982

Preview Lab

Preview with #1C24A9

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

Preview Lab → · Contrast checker → · Palette generator →