#4037AC#4037AC

#4037AC is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.5% C 0.179 H 279.0°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#4037AC
RGB	rgb(64, 55, 172)
HSL	hsl(245, 52%, 45%)
HSV	hsv(245, 68%, 67%)
CMYK	cmyk(62.8%, 68%, 0%, 32.5%)
CIE-LAB	lab(31.35, 39.02, -61.32)
CIE-LCH	lch(31.35, 72.68, 302.47°)
OKLab	oklab(42.47% 0.028 -0.1768)
OKLCH	oklch(42.47% 0.179 279)
XYZ	xyz(10.9246, 6.8001, 39.7586)
Luminance	0.0680 (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

#4037AC #A3AC37

analogous

#3769AC #4037AC #7A37AC

triadic

#4037AC #AC4037 #37AC40

tetradic

#4037AC #AC3769 #A3AC37 #37AC7A

square

#4037AC #AC3769 #A3AC37 #37AC7A

split-complementary

#4037AC #AC7A37 #69AC37

monochromatic

#1D194F #2F287E #4037AC #6057C9 #8C85D8

Accessibility & contrast

On white

8.90

#4037AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#4037AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4037AC

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4037AC	#FFFFFF	#000000	##FFFFFF
##4037AC	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB0

Deuteranopia (green-blind)

#0045AA

Tritanopia (blue-blind)

#00566D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #4037ac;
/* rgb */ color: rgb(64, 55, 172);
/* oklch */ color: oklch(42.5% 0.179 279.0);

Tailwind

colors: {
  custom: {
    50: '#826fc6',
    500: '#4037ac',
    950: '#000000',
  },
}

SCSS

$custom: #4037ac;
$custom-light: #826fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#4037ac",
  "rgb": {
    "r": 64,
    "g": 55,
    "b": 172
  },
  "hsl": {
    "h": 244.615,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42465,
    "c": 0.17897,
    "h": 279
  },
  "luminance": 0.06801
}

Semantic roles & 50–950 ramp

primary

#4037AC

secondary

#BDC27D

accent

#DB4DD0

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4037AC

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

Preview Lab → · Contrast checker → · Palette generator →