#4042D3#4042D3

#4042D3 is a mid, highly saturated blue. Relative luminance 0.097; OKLCH L 47.8% C 0.216 H 274.0°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#4042D3
RGB	rgb(64, 66, 211)
HSL	hsl(239, 63%, 54%)
HSV	hsv(239, 70%, 83%)
CMYK	cmyk(69.7%, 68.7%, 0%, 17.3%)
CIE-LAB	lab(37.28, 45.38, -74.49)
CIE-LCH	lch(37.28, 87.23, 301.35°)
OKLab	oklab(47.82% 0.0151 -0.2153)
OKLCH	oklch(47.82% 0.216 274)
XYZ	xyz(15.8165, 9.6881, 62.6518)
Luminance	0.0969 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue (survey)

#0343DF

ΔE00 3.29

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4042D3 #D3D140

analogous

#408CD3 #4042D3 #8840D3

triadic

#4042D3 #D34042 #42D340

tetradic

#4042D3 #D3408C #D3D140 #40D388

square

#4042D3 #D3408C #D3D140 #40D388

split-complementary

#4042D3 #D38840 #8CD340

monochromatic

#1D1E7C #282AAE #4042D3 #7273DE #A3A4EA

Accessibility & contrast

On white

7.15

#4042D3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#4042D3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042D3

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042D3	#FFFFFF	#000000	##FFFFFF
##4042D3	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD7

Deuteranopia (green-blind)

#0051D0

Tritanopia (blue-blind)

#006A85

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #4042d3;
/* rgb */ color: rgb(64, 66, 211);
/* oklch */ color: oklch(47.8% 0.216 274.0);

Tailwind

colors: {
  custom: {
    50: '#8977e2',
    500: '#4042d3',
    950: '#000000',
  },
}

SCSS

$custom: #4042d3;
$custom-light: #8977e2;
$custom-dark: #000000;

JSON

{
  "hex": "#4042d3",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 211
  },
  "hsl": {
    "h": 239.184,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.4782,
    "c": 0.21584,
    "h": 274
  },
  "luminance": 0.0969
}

Semantic roles & 50–950 ramp

primary

#4042D3

secondary

#D7D698

accent

#E342E6

background

#F9F7FE

surface

#F1EDFC

border

#CBC8D5

text

#0D0915

muted

#7E7B84

Preview Lab

Preview with #4042D3

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

Preview Lab → · Contrast checker → · Palette generator →