#3631BF#3631BF

#3631BF is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.7% C 0.211 H 274.3°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#3631BF
RGB	rgb(54, 49, 191)
HSL	hsl(242, 59%, 47%)
HSV	hsv(242, 74%, 75%)
CMYK	cmyk(71.7%, 74.3%, 0%, 25.1%)
CIE-LAB	lab(31.21, 47.48, -72.85)
CIE-LCH	lch(31.21, 86.96, 303.10°)
OKLab	oklab(42.73% 0.0159 -0.2107)
OKLCH	oklch(42.73% 0.211 274.3)
XYZ	xyz(12.0205, 6.7413, 49.9478)
Luminance	0.0674 (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

#3631BF #BABF31

analogous

#3173BF #3631BF #7D31BF

triadic

#3631BF #BF3631 #31BF36

tetradic

#3631BF #BF3173 #BABF31 #31BF7D

square

#3631BF #BF3173 #BABF31 #31BF7D

split-complementary

#3631BF #BF7D31 #73BF31

monochromatic

#1A185E #28258E #3631BF #5D59D4 #8D8AE1

Accessibility & contrast

On white

8.94

#3631BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3631BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3631BF

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3631BF	#FFFFFF	#000000	##FFFFFF
##3631BF	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050C3

Deuteranopia (green-blind)

#0043BC

Tritanopia (blue-blind)

#005A76

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3631bf;
/* rgb */ color: rgb(54, 49, 191);
/* oklch */ color: oklch(42.7% 0.211 274.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3631bf",
  "rgb": {
    "r": 54,
    "g": 49,
    "b": 191
  },
  "hsl": {
    "h": 242.113,
    "s": 59.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.42734,
    "c": 0.2113,
    "h": 274.3
  },
  "luminance": 0.06742
}

Semantic roles & 50–950 ramp

primary

#3631BF

secondary

#C8CB81

accent

#E245DD

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3631BF

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

Preview Lab → · Contrast checker → · Palette generator →