#4038D9#4038D9

#4038D9 is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 47.0% C 0.233 H 274.8°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#4038D9
RGB	rgb(64, 56, 217)
HSL	hsl(243, 68%, 54%)
HSV	hsv(243, 74%, 85%)
CMYK	cmyk(70.5%, 74.2%, 0%, 14.9%)
CIE-LAB	lab(35.84, 52.90, -80.31)
CIE-LCH	lch(35.84, 96.17, 303.37°)
OKLab	oklab(46.97% 0.0196 -0.2322)
OKLCH	oklch(46.97% 0.233 274.8)
XYZ	xyz(16.0488, 8.9265, 66.5094)
Luminance	0.0893 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.70

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4038D9 #D1D938

analogous

#3880D9 #4038D9 #9038D9

triadic

#4038D9 #D94038 #38D940

tetradic

#4038D9 #D93880 #D1D938 #38D990

square

#4038D9 #D93880 #D1D938 #38D990

split-complementary

#4038D9 #D99038 #80D938

monochromatic

#1D187E #2922B2 #4038D9 #716BE3 #A39FED

Accessibility & contrast

On white

7.54

#4038D9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#4038D9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4038D9

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4038D9	#FFFFFF	#000000	##FFFFFF
##4038D9	1.00	7.54	2.79	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BDE

Deuteranopia (green-blind)

#004DD6

Tritanopia (blue-blind)

#006786

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4038d9;
/* rgb */ color: rgb(64, 56, 217);
/* oklch */ color: oklch(47.0% 0.233 274.8);

Tailwind

colors: {
  custom: {
    50: '#8b71e6',
    500: '#4038d9',
    950: '#000000',
  },
}

SCSS

$custom: #4038d9;
$custom-light: #8b71e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4038d9",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 217
  },
  "hsl": {
    "h": 242.981,
    "s": 67.932,
    "l": 53.529
  },
  "oklch": {
    "l": 0.4697,
    "c": 0.23307,
    "h": 274.8
  },
  "luminance": 0.08928
}

Semantic roles & 50–950 ramp

primary

#4038D9

secondary

#D5D994

accent

#EB3DE2

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #4038D9

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

Preview Lab → · Contrast checker → · Palette generator →