#3630AB#3630AB

#3630AB is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.6% C 0.188 H 276.1°. Best body text is #FFFFFF at 9.69:1 contrast (WCAG AA passes).

Color values

HEX	#3630AB
RGB	rgb(54, 48, 171)
HSL	hsl(243, 56%, 43%)
HSV	hsv(243, 72%, 67%)
CMYK	cmyk(68.4%, 71.9%, 0%, 32.9%)
CIE-LAB	lab(29.00, 41.50, -64.60)
CIE-LCH	lch(29.00, 76.78, 302.72°)
OKLab	oklab(40.56% 0.0201 -0.1866)
OKLCH	oklch(40.56% 0.188 276.1)
XYZ	xyz(9.9266, 5.8376, 39.1238)
Luminance	0.0584 (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

#3630AB #A5AB30

analogous

#3067AB #3630AB #7330AB

triadic

#3630AB #AB3630 #30AB36

tetradic

#3630AB #AB3067 #A5AB30 #30AB73

square

#3630AB #AB3067 #A5AB30 #30AB73

split-complementary

#3630AB #AB7330 #67AB30

monochromatic

#18154B #27237B #3630AB #524CCD #807BDA

Accessibility & contrast

On white

9.69

#3630AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#3630AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3630AB

9.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3630AB	#FFFFFF	#000000	##FFFFFF
##3630AB	1.00	9.69	2.17	9.69
#FFFFFF	9.69	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AAF

Deuteranopia (green-blind)

#003FA9

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #3630ab;
/* rgb */ color: rgb(54, 48, 171);
/* oklch */ color: oklch(40.6% 0.188 276.1);

Tailwind

colors: {
  custom: {
    50: '#7d6ac5',
    500: '#3630ab',
    950: '#000000',
  },
}

SCSS

$custom: #3630ab;
$custom-light: #7d6ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#3630ab",
  "rgb": {
    "r": 54,
    "g": 48,
    "b": 171
  },
  "hsl": {
    "h": 242.927,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40559,
    "c": 0.18773,
    "h": 276.1
  },
  "luminance": 0.05838
}

Semantic roles & 50–950 ramp

primary

#3630AB

secondary

#BFC374

accent

#DF48D8

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #3630AB

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

Preview Lab → · Contrast checker → · Palette generator →