#4039AF#4039AF

#4039AF is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.1% C 0.180 H 278.3°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#4039AF
RGB	rgb(64, 57, 175)
HSL	hsl(244, 51%, 45%)
HSV	hsv(244, 67%, 69%)
CMYK	cmyk(63.4%, 67.4%, 0%, 31.4%)
CIE-LAB	lab(32.06, 38.81, -61.95)
CIE-LCH	lch(32.06, 73.10, 302.07°)
OKLab	oklab(43.06% 0.026 -0.1786)
OKLCH	oklch(43.06% 0.18 278.3)
XYZ	xyz(11.3129, 7.1105, 41.3254)
Luminance	0.0711 (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

#4039AF #A8AF39

analogous

#396DAF #4039AF #7B39AF

triadic

#4039AF #AF4039 #39AF40

tetradic

#4039AF #AF396D #A8AF39 #39AF7B

square

#4039AF #AF396D #A8AF39 #39AF7B

split-complementary

#4039AF #AF7B39 #6DAF39

monochromatic

#1E1B53 #2F2A81 #4039AF #625BCA #8E8AD9

Accessibility & contrast

On white

8.67

#4039AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#4039AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4039AF

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4039AF	#FFFFFF	#000000	##FFFFFF
##4039AF	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B3

Deuteranopia (green-blind)

#0047AD

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4039af;
/* rgb */ color: rgb(64, 57, 175);
/* oklch */ color: oklch(43.1% 0.180 278.3);

Tailwind

colors: {
  custom: {
    50: '#8270c8',
    500: '#4039af',
    950: '#000000',
  },
}

SCSS

$custom: #4039af;
$custom-light: #8270c8;
$custom-dark: #000000;

JSON

{
  "hex": "#4039af",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 175
  },
  "hsl": {
    "h": 243.559,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.4306,
    "c": 0.18049,
    "h": 278.3
  },
  "luminance": 0.07111
}

Semantic roles & 50–950 ramp

primary

#4039AF

secondary

#BFC381

accent

#DA4DD2

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4039AF

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

Preview Lab → · Contrast checker → · Palette generator →