#4031B9#4031B9

#4031B9 is a dark, highly saturated blue. Relative luminance 0.068; OKLCH L 42.8% C 0.202 H 278.5°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#4031B9
RGB	rgb(64, 49, 185)
HSL	hsl(247, 58%, 46%)
HSV	hsv(247, 74%, 73%)
CMYK	cmyk(65.4%, 73.5%, 0%, 27.5%)
CIE-LAB	lab(31.32, 46.63, -69.10)
CIE-LCH	lch(31.32, 83.36, 304.01°)
OKLab	oklab(42.82% 0.03 -0.1995)
OKLCH	oklch(42.82% 0.202 278.5)
XYZ	xyz(11.9668, 6.7884, 46.5692)
Luminance	0.0679 (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

#4031B9 #AAB931

analogous

#3166B9 #4031B9 #8431B9

triadic

#4031B9 #B94031 #31B940

tetradic

#4031B9 #B93166 #AAB931 #31B984

square

#4031B9 #B93166 #AAB931 #31B984

split-complementary

#4031B9 #B98431 #66B931

monochromatic

#1F1758 #2F2489 #4031B9 #6355D2 #8F86DF

Accessibility & contrast

On white

8.91

#4031B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#4031B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4031B9

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4031B9	#FFFFFF	#000000	##FFFFFF
##4031B9	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBD

Deuteranopia (green-blind)

#0044B7

Tritanopia (blue-blind)

#005772

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #4031b9;
/* rgb */ color: rgb(64, 49, 185);
/* oklch */ color: oklch(42.8% 0.202 278.5);

Tailwind

colors: {
  custom: {
    50: '#856bcf',
    500: '#4031b9',
    950: '#000000',
  },
}

SCSS

$custom: #4031b9;
$custom-light: #856bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#4031b9",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 185
  },
  "hsl": {
    "h": 246.618,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.42816,
    "c": 0.20175,
    "h": 278.5
  },
  "luminance": 0.06789
}

Semantic roles & 50–950 ramp

primary

#4031B9

secondary

#C0C87D

accent

#E146D0

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4031B9

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

Preview Lab → · Contrast checker → · Palette generator →