#4038BA#4038BA

#4038BA is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.9% C 0.196 H 277.4°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#4038BA
RGB	rgb(64, 56, 186)
HSL	hsl(244, 54%, 47%)
HSV	hsv(244, 70%, 73%)
CMYK	cmyk(65.6%, 69.9%, 0%, 27.1%)
CIE-LAB	lab(32.84, 43.01, -67.20)
CIE-LCH	lch(32.84, 79.78, 302.62°)
OKLab	oklab(43.93% 0.0252 -0.194)
OKLCH	oklch(43.93% 0.196 277.4)
XYZ	xyz(12.3886, 7.4625, 47.2324)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.20

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4038BA #B2BA38

analogous

#3871BA #4038BA #8138BA

triadic

#4038BA #BA4038 #38BA40

tetradic

#4038BA #BA3871 #B2BA38 #38BA81

square

#4038BA #BA3871 #B2BA38 #38BA81

split-complementary

#4038BA #BA8138 #71BA38

monochromatic

#201C5C #302A8B #4038BA #6760CF #948FDD

Accessibility & contrast

On white

8.42

#4038BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#4038BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4038BA

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4038BA	#FFFFFF	#000000	##FFFFFF
##4038BA	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BE

Deuteranopia (green-blind)

#0048B8

Tritanopia (blue-blind)

#005B75

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4038ba;
/* rgb */ color: rgb(64, 56, 186);
/* oklch */ color: oklch(43.9% 0.196 277.4);

Tailwind

colors: {
  custom: {
    50: '#8470d0',
    500: '#4038ba',
    950: '#000000',
  },
}

SCSS

$custom: #4038ba;
$custom-light: #8470d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4038ba",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 186
  },
  "hsl": {
    "h": 243.692,
    "s": 53.719,
    "l": 47.451
  },
  "oklch": {
    "l": 0.43927,
    "c": 0.1956,
    "h": 277.4
  },
  "luminance": 0.07464
}

Semantic roles & 50–950 ramp

primary

#4038BA

secondary

#C4C886

accent

#DD4BD4

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4038BA

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

Preview Lab → · Contrast checker → · Palette generator →