#3638C9#3638C9

#3638C9 is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.8% C 0.216 H 272.8°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#3638C9
RGB	rgb(54, 56, 201)
HSL	hsl(239, 58%, 50%)
HSV	hsv(239, 73%, 79%)
CMYK	cmyk(73.1%, 72.1%, 0%, 21.2%)
CIE-LAB	lab(33.62, 46.82, -74.73)
CIE-LCH	lch(33.62, 88.19, 302.07°)
OKLab	oklab(44.75% 0.0106 -0.2162)
OKLCH	oklch(44.75% 0.216 272.8)
XYZ	xyz(13.4746, 7.8283, 56.0479)
Luminance	0.0783 (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

#3638C9 #C9C736

analogous

#3681C9 #3638C9 #7E36C9

triadic

#3638C9 #C93638 #38C936

tetradic

#3638C9 #C93681 #C9C736 #36C97E

square

#3638C9 #C93681 #C9C736 #36C97E

split-complementary

#3638C9 #C97E36 #81C936

monochromatic

#1C1D69 #292B99 #3638C9 #6668D6 #9698E3

Accessibility & contrast

On white

8.18

#3638C9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3638C9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3638C9

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3638C9	#FFFFFF	#000000	##FFFFFF
##3638C9	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056CD

Deuteranopia (green-blind)

#0048C6

Tritanopia (blue-blind)

#00617D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3638c9;
/* rgb */ color: rgb(54, 56, 201);
/* oklch */ color: oklch(44.8% 0.216 272.8);

Tailwind

colors: {
  custom: {
    50: '#8370db',
    500: '#3638c9',
    950: '#000000',
  },
}

SCSS

$custom: #3638c9;
$custom-light: #8370db;
$custom-dark: #000000;

JSON

{
  "hex": "#3638c9",
  "rgb": {
    "r": 54,
    "g": 56,
    "b": 201
  },
  "hsl": {
    "h": 239.184,
    "s": 57.647,
    "l": 50
  },
  "oklch": {
    "l": 0.44752,
    "c": 0.21648,
    "h": 272.8
  },
  "luminance": 0.0783
}

Semantic roles & 50–950 ramp

primary

#3638C9

secondary

#CECD8C

accent

#DF47E1

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0D0715

muted

#7D7A83

Preview Lab

Preview with #3638C9

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

Preview Lab → · Contrast checker → · Palette generator →