#4038BF#4038BF

#4038BF is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.4% C 0.202 H 276.9°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#4038BF
RGB	rgb(64, 56, 191)
HSL	hsl(244, 55%, 48%)
HSV	hsv(244, 71%, 75%)
CMYK	cmyk(66.5%, 70.7%, 0%, 25.1%)
CIE-LAB	lab(33.30, 44.63, -69.38)
CIE-LCH	lch(33.30, 82.49, 302.75°)
OKLab	oklab(44.4% 0.0243 -0.2003)
OKLCH	oklch(44.4% 0.202 276.9)
XYZ	xyz(12.9294, 7.6788, 50.0809)
Luminance	0.0768 (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

#4038BF #B7BF38

analogous

#3873BF #4038BF #8438BF

triadic

#4038BF #BF4038 #38BF40

tetradic

#4038BF #BF3873 #B7BF38 #38BF84

square

#4038BF #BF3873 #B7BF38 #38BF84

split-complementary

#4038BF #BF8438 #73BF38

monochromatic

#201C60 #302A90 #4038BF #6963D1 #9792DF

Accessibility & contrast

On white

8.28

#4038BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#4038BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4038BF

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4038BF	#FFFFFF	#000000	##FFFFFF
##4038BF	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C3

Deuteranopia (green-blind)

#0048BC

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4038bf;
/* rgb */ color: rgb(64, 56, 191);
/* oklch */ color: oklch(44.4% 0.202 276.9);

Tailwind

colors: {
  custom: {
    50: '#8570d3',
    500: '#4038bf',
    950: '#000000',
  },
}

SCSS

$custom: #4038bf;
$custom-light: #8570d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4038bf",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 191
  },
  "hsl": {
    "h": 243.556,
    "s": 54.656,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44404,
    "c": 0.20182,
    "h": 276.9
  },
  "luminance": 0.0768
}

Semantic roles & 50–950 ramp

primary

#4038BF

secondary

#C6CA89

accent

#DE4AD5

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #4038BF

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

Preview Lab → · Contrast checker → · Palette generator →