#4038CB#4038CB

#4038CB is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.6% C 0.216 H 275.9°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#4038CB
RGB	rgb(64, 56, 203)
HSL	hsl(243, 59%, 51%)
HSV	hsv(243, 72%, 80%)
CMYK	cmyk(68.5%, 72.4%, 0%, 20.4%)
CIE-LAB	lab(34.45, 48.48, -74.50)
CIE-LCH	lch(34.45, 88.89, 303.05°)
OKLab	oklab(45.57% 0.0223 -0.2153)
OKLCH	oklch(45.57% 0.216 275.9)
XYZ	xyz(14.3045, 8.2288, 57.3228)
Luminance	0.0823 (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

#4038CB #C3CB38

analogous

#3879CB #4038CB #8938CB

triadic

#4038CB #CB4038 #38CB40

tetradic

#4038CB #CB3879 #C3CB38 #38CB89

square

#4038CB #CB3879 #C3CB38 #38CB89

split-complementary

#4038CB #CB8938 #79CB38

monochromatic

#211C6C #2F299D #4038CB #6F69D8 #9D99E4

Accessibility & contrast

On white

7.94

#4038CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#4038CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4038CB

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4038CB	#FFFFFF	#000000	##FFFFFF
##4038CB	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057CF

Deuteranopia (green-blind)

#004AC8

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #4038cb;
/* rgb */ color: rgb(64, 56, 203);
/* oklch */ color: oklch(45.6% 0.216 275.9);

Tailwind

colors: {
  custom: {
    50: '#8871dc',
    500: '#4038cb',
    950: '#000000',
  },
}

SCSS

$custom: #4038cb;
$custom-light: #8871dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4038cb",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 203
  },
  "hsl": {
    "h": 243.265,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.45571,
    "c": 0.21646,
    "h": 275.9
  },
  "luminance": 0.0823
}

Semantic roles & 50–950 ramp

primary

#4038CB

secondary

#CCD08F

accent

#E246D9

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4038CB

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

Preview Lab → · Contrast checker → · Palette generator →