#353F8B#353F8B

#353F8B is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.3% C 0.126 H 273.7°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#353F8B
RGB	rgb(53, 63, 139)
HSL	hsl(233, 45%, 38%)
HSV	hsv(233, 62%, 55%)
CMYK	cmyk(61.9%, 54.7%, 0%, 45.5%)
CIE-LAB	lab(29.85, 20.61, -43.74)
CIE-LCH	lch(29.85, 48.35, 295.24°)
OKLab	oklab(40.32% 0.0082 -0.1254)
OKLCH	oklch(40.32% 0.126 273.7)
XYZ	xyz(7.9044, 6.1754, 25.1965)
Luminance	0.0618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#353F8B #8B8135

analogous

#356A8B #353F8B #56358B

triadic

#353F8B #8B353F #3F8B35

tetradic

#353F8B #8B356A #8B8135 #358B56

square

#353F8B #8B356A #8B8135 #358B56

split-complementary

#353F8B #8B5635 #6A8B35

monochromatic

#131732 #242B5F #353F8B #4653B7 #717CC9

Accessibility & contrast

On white

9.40

#353F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#353F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #353F8B

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##353F8B	#FFFFFF	#000000	##FFFFFF
##353F8B	1.00	9.40	2.24	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F4A8E

Deuteranopia (green-blind)

#004389

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #353f8b;
/* rgb */ color: rgb(53, 63, 139);
/* oklch */ color: oklch(40.3% 0.126 273.7);

Tailwind

colors: {
  custom: {
    50: '#7573ad',
    500: '#353f8b',
    950: '#000000',
  },
}

SCSS

$custom: #353f8b;
$custom-light: #7573ad;
$custom-dark: #000000;

JSON

{
  "hex": "#353f8b",
  "rgb": {
    "r": 53,
    "g": 63,
    "b": 139
  },
  "hsl": {
    "h": 233.023,
    "s": 44.792,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40323,
    "c": 0.12564,
    "h": 273.7
  },
  "luminance": 0.06176
}

Semantic roles & 50–950 ramp

primary

#353F8B

secondary

#B1A96A

accent

#C553D4

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #353F8B

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

Preview Lab → · Contrast checker → · Palette generator →