#4037C7#4037C7

#4037C7 is a mid, highly saturated blue. Relative luminance 0.079; OKLCH L 45.0% C 0.213 H 276.4°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#4037C7
RGB	rgb(64, 55, 199)
HSL	hsl(244, 57%, 50%)
HSV	hsv(244, 72%, 78%)
CMYK	cmyk(67.8%, 72.4%, 0%, 22%)
CIE-LAB	lab(33.87, 47.76, -73.14)
CIE-LCH	lch(33.87, 87.35, 303.15°)
OKLab	oklab(45.04% 0.0236 -0.2113)
OKLCH	oklch(45.04% 0.213 276.4)
XYZ	xyz(13.7860, 7.9446, 54.8287)
Luminance	0.0795 (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

#4037C7 #BEC737

analogous

#3776C7 #4037C7 #8837C7

triadic

#4037C7 #C74037 #37C740

tetradic

#4037C7 #C73776 #BEC737 #37C788

square

#4037C7 #C73776 #BEC737 #37C788

split-complementary

#4037C7 #C78837 #76C737

monochromatic

#211C67 #312A97 #4037C7 #6D66D5 #9B96E2

Accessibility & contrast

On white

8.11

#4037C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#4037C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4037C7

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4037C7	#FFFFFF	#000000	##FFFFFF
##4037C7	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056CB

Deuteranopia (green-blind)

#0049C4

Tritanopia (blue-blind)

#00607C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4037c7;
/* rgb */ color: rgb(64, 55, 199);
/* oklch */ color: oklch(45.0% 0.213 276.4);

Tailwind

colors: {
  custom: {
    50: '#8770d9',
    500: '#4037c7',
    950: '#000000',
  },
}

SCSS

$custom: #4037c7;
$custom-light: #8770d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4037c7",
  "rgb": {
    "r": 64,
    "g": 55,
    "b": 199
  },
  "hsl": {
    "h": 243.75,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.45036,
    "c": 0.21264,
    "h": 276.4
  },
  "luminance": 0.07946
}

Semantic roles & 50–950 ramp

primary

#4037C7

secondary

#C9CD8C

accent

#E048D6

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #4037C7

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

Preview Lab → · Contrast checker → · Palette generator →