#3631AA#3631AA

#3631AA is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.6% C 0.185 H 276.1°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#3631AA
RGB	rgb(54, 49, 170)
HSL	hsl(242, 55%, 43%)
HSV	hsv(242, 71%, 67%)
CMYK	cmyk(68.2%, 71.2%, 0%, 33.3%)
CIE-LAB	lab(29.11, 40.58, -63.81)
CIE-LCH	lch(29.11, 75.62, 302.46°)
OKLab	oklab(40.61% 0.0196 -0.1843)
OKLCH	oklch(40.61% 0.185 276.1)
XYZ	xyz(9.8730, 5.8823, 38.6375)
Luminance	0.0588 (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

#3631AA #A5AA31

analogous

#3169AA #3631AA #7231AA

triadic

#3631AA #AA3631 #31AA36

tetradic

#3631AA #AA3169 #A5AA31 #31AA72

square

#3631AA #AA3169 #A5AA31 #31AA72

split-complementary

#3631AA #AA7231 #69AA31

monochromatic

#18164B #27237A #3631AA #524DCC #807CD9

Accessibility & contrast

On white

9.65

#3631AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#3631AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3631AA

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3631AA	#FFFFFF	#000000	##FFFFFF
##3631AA	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAE

Deuteranopia (green-blind)

#003FA8

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3631aa;
/* rgb */ color: rgb(54, 49, 170);
/* oklch */ color: oklch(40.6% 0.185 276.1);

Tailwind

colors: {
  custom: {
    50: '#7d6ac4',
    500: '#3631aa',
    950: '#000000',
  },
}

SCSS

$custom: #3631aa;
$custom-light: #7d6ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#3631aa",
  "rgb": {
    "r": 54,
    "g": 49,
    "b": 170
  },
  "hsl": {
    "h": 242.479,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40611,
    "c": 0.18538,
    "h": 276.1
  },
  "luminance": 0.05883
}

Semantic roles & 50–950 ramp

primary

#3631AA

secondary

#BFC275

accent

#DF49D8

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3631AA

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

Preview Lab → · Contrast checker → · Palette generator →