#353DB3#353DB3

#353DB3 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.4% C 0.184 H 272.9°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#353DB3
RGB	rgb(53, 61, 179)
HSL	hsl(236, 54%, 45%)
HSV	hsv(236, 70%, 70%)
CMYK	cmyk(70.4%, 65.9%, 0%, 29.8%)
CIE-LAB	lab(32.59, 36.22, -63.49)
CIE-LCH	lch(32.59, 73.10, 299.71°)
OKLab	oklab(43.36% 0.0093 -0.1834)
OKLCH	oklch(43.36% 0.184 272.9)
XYZ	xyz(11.2709, 7.3480, 43.4634)
Luminance	0.0735 (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

#353DB3 #B3AB35

analogous

#357CB3 #353DB3 #6C35B3

triadic

#353DB3 #B3353D #3DB335

tetradic

#353DB3 #B3357C #B3AB35 #35B36C

square

#353DB3 #B3357C #B3AB35 #35B36C

split-complementary

#353DB3 #B36C35 #7CB335

monochromatic

#191D55 #272D84 #353DB3 #585FCD #878CDB

Accessibility & contrast

On white

8.50

#353DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#353DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #353DB3

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##353DB3	#FFFFFF	#000000	##FFFFFF
##353DB3	1.00	8.50	2.47	8.50
#FFFFFF	8.50	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B7

Deuteranopia (green-blind)

#0047B1

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #353db3;
/* rgb */ color: rgb(53, 61, 179);
/* oklch */ color: oklch(43.4% 0.184 272.9);

Tailwind

colors: {
  custom: {
    50: '#7e73cb',
    500: '#353db3',
    950: '#000000',
  },
}

SCSS

$custom: #353db3;
$custom-light: #7e73cb;
$custom-dark: #000000;

JSON

{
  "hex": "#353db3",
  "rgb": {
    "r": 53,
    "g": 61,
    "b": 179
  },
  "hsl": {
    "h": 236.19,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.43359,
    "c": 0.18364,
    "h": 272.9
  },
  "luminance": 0.07349
}

Semantic roles & 50–950 ramp

primary

#353DB3

secondary

#C5C17F

accent

#D44ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #353DB3

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

Preview Lab → · Contrast checker → · Palette generator →