#4039CA#4039CA

#4039CA is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.6% C 0.214 H 275.9°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#4039CA
RGB	rgb(64, 57, 202)
HSL	hsl(243, 58%, 51%)
HSV	hsv(243, 72%, 79%)
CMYK	cmyk(68.3%, 71.8%, 0%, 20.8%)
CIE-LAB	lab(34.56, 47.60, -73.75)
CIE-LCH	lch(34.56, 87.78, 302.84°)
OKLab	oklab(45.62% 0.0218 -0.2131)
OKLCH	oklch(45.62% 0.214 275.9)
XYZ	xyz(14.2346, 8.2792, 56.7136)
Luminance	0.0828 (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

#4039CA #C3CA39

analogous

#397ACA #4039CA #8939CA

triadic

#4039CA #CA4039 #39CA40

tetradic

#4039CA #CA397A #C3CA39 #39CA89

square

#4039CA #CA397A #C3CA39 #39CA89

split-complementary

#4039CA #CA8939 #7ACA39

monochromatic

#211D6C #2F2A9C #4039CA #6F69D7 #9D9AE4

Accessibility & contrast

On white

7.91

#4039CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#4039CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4039CA

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4039CA	#FFFFFF	#000000	##FFFFFF
##4039CA	1.00	7.91	2.66	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058CE

Deuteranopia (green-blind)

#004BC7

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #4039ca;
/* rgb */ color: rgb(64, 57, 202);
/* oklch */ color: oklch(45.6% 0.214 275.9);

Tailwind

colors: {
  custom: {
    50: '#8771db',
    500: '#4039ca',
    950: '#000000',
  },
}

SCSS

$custom: #4039ca;
$custom-light: #8771db;
$custom-dark: #000000;

JSON

{
  "hex": "#4039ca",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 202
  },
  "hsl": {
    "h": 242.897,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.45615,
    "c": 0.21424,
    "h": 275.9
  },
  "luminance": 0.08281
}

Semantic roles & 50–950 ramp

primary

#4039CA

secondary

#CCD08F

accent

#E147DA

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4039CA

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

Preview Lab → · Contrast checker → · Palette generator →