#4031B3#4031B3

#4031B3 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 42.2% C 0.194 H 279.2°. Best body text is #FFFFFF at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#4031B3
RGB	rgb(64, 49, 179)
HSL	hsl(247, 57%, 45%)
HSV	hsv(247, 73%, 70%)
CMYK	cmyk(64.2%, 72.6%, 0%, 29.8%)
CIE-LAB	lab(30.74, 44.74, -66.50)
CIE-LCH	lch(30.74, 80.15, 303.93°)
OKLab	oklab(42.23% 0.0312 -0.1919)
OKLCH	oklch(42.23% 0.194 279.2)
XYZ	xyz(11.3467, 6.5404, 43.3036)
Luminance	0.0654 (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

#4031B3 #A4B331

analogous

#3163B3 #4031B3 #8131B3

triadic

#4031B3 #B34031 #31B340

tetradic

#4031B3 #B33163 #A4B331 #31B381

square

#4031B3 #B33163 #A4B331 #31B381

split-complementary

#4031B3 #B38131 #63B331

monochromatic

#1E1753 #2F2483 #4031B3 #6052D0 #8C82DD

Accessibility & contrast

On white

9.10

#4031B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#4031B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4031B3

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4031B3	#FFFFFF	#000000	##FFFFFF
##4031B3	1.00	9.10	2.31	9.10
#FFFFFF	9.10	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB7

Deuteranopia (green-blind)

#0043B1

Tritanopia (blue-blind)

#00556F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #4031b3;
/* rgb */ color: rgb(64, 49, 179);
/* oklch */ color: oklch(42.2% 0.194 279.2);

Tailwind

colors: {
  custom: {
    50: '#836bcb',
    500: '#4031b3',
    950: '#000000',
  },
}

SCSS

$custom: #4031b3;
$custom-light: #836bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#4031b3",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 179
  },
  "hsl": {
    "h": 246.923,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42226,
    "c": 0.19443,
    "h": 279.2
  },
  "luminance": 0.06541
}

Semantic roles & 50–950 ramp

primary

#4031B3

secondary

#BDC67A

accent

#E048CF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4031B3

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

Preview Lab → · Contrast checker → · Palette generator →