#3538CB#3538CB

#3538CB is a dark, highly saturated blue. Relative luminance 0.079; OKLCH L 44.9% C 0.219 H 272.4°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#3538CB
RGB	rgb(53, 56, 203)
HSL	hsl(239, 59%, 50%)
HSV	hsv(239, 74%, 80%)
CMYK	cmyk(73.9%, 72.4%, 0%, 20.4%)
CIE-LAB	lab(33.76, 47.39, -75.66)
CIE-LCH	lch(33.76, 89.28, 302.06°)
OKLab	oklab(44.9% 0.0092 -0.219)
OKLCH	oklch(44.9% 0.219 272.4)
XYZ	xyz(13.6582, 7.8956, 57.2925)
Luminance	0.0790 (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

#3538CB #CBC835

analogous

#3583CB #3538CB #7D35CB

triadic

#3538CB #CB3538 #38CB35

tetradic

#3538CB #CB3583 #CBC835 #35CB7D

square

#3538CB #CB3583 #CBC835 #35CB7D

split-complementary

#3538CB #CB7D35 #83CB35

monochromatic

#1B1D6A #282A9B #3538CB #6668D8 #9698E4

Accessibility & contrast

On white

8.14

#3538CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3538CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3538CB

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3538CB	#FFFFFF	#000000	##FFFFFF
##3538CB	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057CF

Deuteranopia (green-blind)

#0048C8

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3538cb;
/* rgb */ color: rgb(53, 56, 203);
/* oklch */ color: oklch(44.9% 0.219 272.4);

Tailwind

colors: {
  custom: {
    50: '#8370dc',
    500: '#3538cb',
    950: '#000000',
  },
}

SCSS

$custom: #3538cb;
$custom-light: #8370dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3538cb",
  "rgb": {
    "r": 53,
    "g": 56,
    "b": 203
  },
  "hsl": {
    "h": 238.8,
    "s": 59.055,
    "l": 50.196
  },
  "oklch": {
    "l": 0.44897,
    "c": 0.21915,
    "h": 272.4
  },
  "luminance": 0.07897
}

Semantic roles & 50–950 ramp

primary

#3538CB

secondary

#CFCE8C

accent

#DF46E2

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0D0715

muted

#7D7A83

Preview Lab

Preview with #3538CB

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

Preview Lab → · Contrast checker → · Palette generator →