#4037C0#4037C0

#4037C0 is a dark, highly saturated blue. Relative luminance 0.076; OKLCH L 44.4% C 0.204 H 277.0°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#4037C0
RGB	rgb(64, 55, 192)
HSL	hsl(244, 55%, 48%)
HSV	hsv(244, 71%, 75%)
CMYK	cmyk(66.7%, 71.4%, 0%, 24.7%)
CIE-LAB	lab(33.19, 45.52, -70.15)
CIE-LCH	lch(33.19, 83.62, 302.98°)
OKLab	oklab(44.35% 0.0248 -0.2026)
OKLCH	oklch(44.35% 0.204 277)
XYZ	xyz(12.9919, 7.6270, 50.6465)
Luminance	0.0763 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4037C0 #B7C037

analogous

#3772C0 #4037C0 #8437C0

triadic

#4037C0 #C04037 #37C040

tetradic

#4037C0 #C03772 #B7C037 #37C084

square

#4037C0 #C03772 #B7C037 #37C084

split-complementary

#4037C0 #C08437 #72C037

monochromatic

#201C61 #302990 #4037C0 #6962D2 #9792E0

Accessibility & contrast

On white

8.31

#4037C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#4037C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4037C0

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4037C0	#FFFFFF	#000000	##FFFFFF
##4037C0	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C4

Deuteranopia (green-blind)

#0048BD

Tritanopia (blue-blind)

#005D78

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4037c0;
/* rgb */ color: rgb(64, 55, 192);
/* oklch */ color: oklch(44.4% 0.204 277.0);

Tailwind

colors: {
  custom: {
    50: '#866fd4',
    500: '#4037c0',
    950: '#000000',
  },
}

SCSS

$custom: #4037c0;
$custom-light: #866fd4;
$custom-dark: #000000;

JSON

{
  "hex": "#4037c0",
  "rgb": {
    "r": 64,
    "g": 55,
    "b": 192
  },
  "hsl": {
    "h": 243.942,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44353,
    "c": 0.2041,
    "h": 277
  },
  "luminance": 0.07628
}

Semantic roles & 50–950 ramp

primary

#4037C0

secondary

#C6CB88

accent

#DF49D5

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0D0714

muted

#7D7A83

Preview Lab

Preview with #4037C0

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

Preview Lab → · Contrast checker → · Palette generator →