#1C19B3#1C19B3

#1C19B3 is a dark, highly saturated blue. Relative luminance 0.042; OKLCH L 37.1% C 0.223 H 268.9°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#1C19B3
RGB	rgb(28, 25, 179)
HSL	hsl(241, 75%, 40%)
HSV	hsv(241, 86%, 70%)
CMYK	cmyk(84.4%, 86%, 0%, 29.8%)
CIE-LAB	lab(24.31, 53.82, -77.21)
CIE-LCH	lch(24.31, 94.12, 304.88°)
OKLab	oklab(37.12% -0.0042 -0.2234)
OKLCH	oklch(37.12% 0.223 268.9)
XYZ	xyz(8.9604, 4.1957, 42.9767)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C19B3 #B0B319

analogous

#1963B3 #1C19B3 #6919B3

triadic

#1C19B3 #B31C19 #19B31C

tetradic

#1C19B3 #B31963 #B0B319 #19B369

square

#1C19B3 #B31963 #B0B319 #19B369

split-complementary

#1C19B3 #B36919 #63B319

monochromatic

#0B0A48 #14127D #1C19B3 #2C28E1 #615EE8

Accessibility & contrast

On white

11.42

#1C19B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#1C19B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C19B3

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C19B3	#FFFFFF	#000000	##FFFFFF
##1C19B3	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B7

Deuteranopia (green-blind)

#0031B1

Tritanopia (blue-blind)

#004D6A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1c19b3;
/* rgb */ color: rgb(28, 25, 179);
/* oklch */ color: oklch(37.1% 0.223 268.9);

Tailwind

colors: {
  custom: {
    50: '#795ccb',
    500: '#1c19b3',
    950: '#000000',
  },
}

SCSS

$custom: #1c19b3;
$custom-light: #795ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c19b3",
  "rgb": {
    "r": 28,
    "g": 25,
    "b": 179
  },
  "hsl": {
    "h": 241.169,
    "s": 75.49,
    "l": 40
  },
  "oklch": {
    "l": 0.37124,
    "c": 0.22349,
    "h": 268.9
  },
  "luminance": 0.04197
}

Semantic roles & 50–950 ramp

primary

#1C19B3

secondary

#CACC5B

accent

#F236EE

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0414

muted

#7C7982

Preview Lab

Preview with #1C19B3

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

Preview Lab → · Contrast checker → · Palette generator →