#3631C0#3631C0

#3631C0 is a dark, highly saturated blue. Relative luminance 0.068; OKLCH L 42.8% C 0.212 H 274.2°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#3631C0
RGB	rgb(54, 49, 192)
HSL	hsl(242, 59%, 47%)
HSV	hsv(242, 74%, 75%)
CMYK	cmyk(71.9%, 74.5%, 0%, 24.7%)
CIE-LAB	lab(31.31, 47.80, -73.27)
CIE-LCH	lch(31.31, 87.48, 303.12°)
OKLab	oklab(42.84% 0.0157 -0.2119)
OKLCH	oklch(42.84% 0.213 274.2)
XYZ	xyz(12.1309, 6.7855, 50.5294)
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

#3631C0 #BBC031

analogous

#3174C0 #3631C0 #7E31C0

triadic

#3631C0 #C03631 #31C036

tetradic

#3631C0 #C03174 #BBC031 #31C07E

square

#3631C0 #C03174 #BBC031 #31C07E

split-complementary

#3631C0 #C07E31 #74C031

monochromatic

#1B185E #28258F #3631C0 #5E59D5 #8D8AE1

Accessibility & contrast

On white

8.91

#3631C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#3631C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3631C0

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3631C0	#FFFFFF	#000000	##FFFFFF
##3631C0	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)

#0050C4

Deuteranopia (green-blind)

#0043BD

Tritanopia (blue-blind)

#005B76

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3631c0;
/* rgb */ color: rgb(54, 49, 192);
/* oklch */ color: oklch(42.8% 0.212 274.2);

Tailwind

colors: {
  custom: {
    50: '#826bd4',
    500: '#3631c0',
    950: '#000000',
  },
}

SCSS

$custom: #3631c0;
$custom-light: #826bd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3631c0",
  "rgb": {
    "r": 54,
    "g": 49,
    "b": 192
  },
  "hsl": {
    "h": 242.098,
    "s": 59.336,
    "l": 47.255
  },
  "oklch": {
    "l": 0.42838,
    "c": 0.2125,
    "h": 274.2
  },
  "luminance": 0.06787
}

Semantic roles & 50–950 ramp

primary

#3631C0

secondary

#C9CB82

accent

#E345DD

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3631C0

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

Preview Lab → · Contrast checker → · Palette generator →