#4031A9#4031A9

#4031A9 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.3% C 0.182 H 280.5°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#4031A9
RGB	rgb(64, 49, 169)
HSL	hsl(248, 55%, 43%)
HSV	hsv(248, 71%, 66%)
CMYK	cmyk(62.1%, 71%, 0%, 33.7%)
CIE-LAB	lab(29.79, 41.57, -62.07)
CIE-LCH	lch(29.79, 74.71, 303.81°)
OKLab	oklab(41.26% 0.0331 -0.179)
OKLCH	oklch(41.26% 0.182 280.5)
XYZ	xyz(10.3718, 6.1504, 38.1690)
Luminance	0.0615 (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

#4031A9 #9AA931

analogous

#315EA9 #4031A9 #7C31A9

triadic

#4031A9 #A94031 #31A940

tetradic

#4031A9 #A9315E #9AA931 #31A97C

square

#4031A9 #A9315E #9AA931 #31A97C

split-complementary

#4031A9 #A97C31 #5EA931

monochromatic

#1C154A #2E237A #4031A9 #5C4CCB #877CD9

Accessibility & contrast

On white

9.42

#4031A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#4031A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4031A9

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4031A9	#FFFFFF	#000000	##FFFFFF
##4031A9	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAD

Deuteranopia (green-blind)

#0042A7

Tritanopia (blue-blind)

#005169

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #4031a9;
/* rgb */ color: rgb(64, 49, 169);
/* oklch */ color: oklch(41.3% 0.182 280.5);

Tailwind

colors: {
  custom: {
    50: '#816bc4',
    500: '#4031a9',
    950: '#000000',
  },
}

SCSS

$custom: #4031a9;
$custom-light: #816bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#4031a9",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 169
  },
  "hsl": {
    "h": 247.5,
    "s": 55.046,
    "l": 42.745
  },
  "oklch": {
    "l": 0.41262,
    "c": 0.18201,
    "h": 280.5
  },
  "luminance": 0.06151
}

Semantic roles & 50–950 ramp

primary

#4031A9

secondary

#B8C174

accent

#DE49CC

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4031A9

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

Preview Lab → · Contrast checker → · Palette generator →