#1F19CA#1F19CA

#1F19CA is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 40.1% C 0.248 H 268.6°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#1F19CA
RGB	rgb(31, 25, 202)
HSL	hsl(242, 78%, 45%)
HSV	hsv(242, 88%, 79%)
CMYK	cmyk(84.7%, 87.6%, 0%, 20.8%)
CIE-LAB	lab(27.43, 60.58, -85.61)
CIE-LCH	lch(27.43, 104.88, 305.29°)
OKLab	oklab(40.14% -0.0061 -0.2477)
OKLCH	oklch(40.14% 0.248 268.6)
XYZ	xyz(11.5697, 5.2494, 56.2691)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F19CA #C4CA19

analogous

#196CCA #1F19CA #7819CA

triadic

#1F19CA #CA1F19 #19CA1F

tetradic

#1F19CA #CA196C #C4CA19 #19CA78

square

#1F19CA #CA196C #C4CA19 #19CA78

split-complementary

#1F19CA #CA7819 #6CCA19

monochromatic

#0E0C5D #171294 #1F19CA #3F3AE7 #7470ED

Accessibility & contrast

On white

10.24

#1F19CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#1F19CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F19CA

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F19CA	#FFFFFF	#000000	##FFFFFF
##1F19CA	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ACF

Deuteranopia (green-blind)

#0037C7

Tritanopia (blue-blind)

#005778

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f19ca;
/* rgb */ color: rgb(31, 25, 202);
/* oklch */ color: oklch(40.1% 0.248 268.6);

Tailwind

colors: {
  custom: {
    50: '#7f5edc',
    500: '#1f19ca',
    950: '#000000',
  },
}

SCSS

$custom: #1f19ca;
$custom-light: #7f5edc;
$custom-dark: #000000;

JSON

{
  "hex": "#1f19ca",
  "rgb": {
    "r": 31,
    "g": 25,
    "b": 202
  },
  "hsl": {
    "h": 242.034,
    "s": 77.974,
    "l": 44.51
  },
  "oklch": {
    "l": 0.40138,
    "c": 0.24774,
    "h": 268.6
  },
  "luminance": 0.05251
}

Semantic roles & 50–950 ramp

primary

#1F19CA

secondary

#D0D46B

accent

#F433EE

background

#F8F5FD

surface

#F0EAFB

border

#CBC6D4

text

#0D0515

muted

#7D7983

Preview Lab

Preview with #1F19CA

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

Preview Lab → · Contrast checker → · Palette generator →