#4038CC#4038CC

#4038CC is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.7% C 0.218 H 275.8°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#4038CC
RGB	rgb(64, 56, 204)
HSL	hsl(243, 59%, 51%)
HSV	hsv(243, 73%, 80%)
CMYK	cmyk(68.6%, 72.5%, 0%, 20%)
CIE-LAB	lab(34.55, 48.80, -74.92)
CIE-LCH	lch(34.55, 89.41, 303.08°)
OKLab	oklab(45.67% 0.0221 -0.2165)
OKLCH	oklch(45.67% 0.218 275.8)
XYZ	xyz(14.4240, 8.2766, 57.9524)
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

#4038CC #C4CC38

analogous

#387ACC #4038CC #8A38CC

triadic

#4038CC #CC4038 #38CC40

tetradic

#4038CC #CC387A #C4CC38 #38CC8A

square

#4038CC #CC387A #C4CC38 #38CC8A

split-complementary

#4038CC #CC8A38 #7ACC38

monochromatic

#201C6E #2F299E #4038CC #6F69D8 #9E99E5

Accessibility & contrast

On white

7.91

#4038CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#4038CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4038CC

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4038CC	#FFFFFF	#000000	##FFFFFF
##4038CC	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)

#0058D0

Deuteranopia (green-blind)

#004BC9

Tritanopia (blue-blind)

#00627F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #4038cc;
/* rgb */ color: rgb(64, 56, 204);
/* oklch */ color: oklch(45.7% 0.218 275.8);

Tailwind

colors: {
  custom: {
    50: '#8871dd',
    500: '#4038cc',
    950: '#000000',
  },
}

SCSS

$custom: #4038cc;
$custom-light: #8871dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4038cc",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 204
  },
  "hsl": {
    "h": 243.243,
    "s": 59.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.4567,
    "c": 0.21766,
    "h": 275.8
  },
  "luminance": 0.08278
}

Semantic roles & 50–950 ramp

primary

#4038CC

secondary

#CDD18F

accent

#E245DA

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4038CC

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

Preview Lab → · Contrast checker → · Palette generator →