#355D99#355D99

#355D99 is a mid, moderate blue. Relative luminance 0.109; OKLCH L 47.9% C 0.107 H 258.3°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#355D99
RGB	rgb(53, 93, 153)
HSL	hsl(216, 49%, 40%)
HSV	hsv(216, 65%, 60%)
CMYK	cmyk(65.4%, 39.2%, 0%, 40%)
CIE-LAB	lab(39.39, 5.89, -36.99)
CIE-LCH	lch(39.39, 37.45, 279.05°)
OKLab	oklab(47.91% -0.0217 -0.1051)
OKLCH	oklch(47.91% 0.107 258.3)
XYZ	xyz(11.1303, 10.8844, 31.6452)
Luminance	0.1089 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355D99 #997135

analogous

#358F99 #355D99 #3F3599

triadic

#355D99 #99355D #5D9935

tetradic

#355D99 #99358F #997135 #35993F

square

#355D99 #99358F #997135 #35993F

split-complementary

#355D99 #993F35 #8F9935

monochromatic

#16263E #25416C #355D99 #4B7AC1 #789BD0

Accessibility & contrast

On white

6.61

#355D99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#355D99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355D99

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355D99	#FFFFFF	#000000	##FFFFFF
##355D99	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43629B

Deuteranopia (green-blind)

#345898

Tritanopia (blue-blind)

#006B73

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #355d99;
/* rgb */ color: rgb(53, 93, 153);
/* oklch */ color: oklch(47.9% 0.107 258.3);

Tailwind

colors: {
  custom: {
    50: '#778ab7',
    500: '#355d99',
    950: '#000000',
  },
}

SCSS

$custom: #355d99;
$custom-light: #778ab7;
$custom-dark: #000000;

JSON

{
  "hex": "#355d99",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 153
  },
  "hsl": {
    "h": 216,
    "s": 48.544,
    "l": 40.392
  },
  "oklch": {
    "l": 0.47906,
    "c": 0.10737,
    "h": 258.3
  },
  "luminance": 0.10885
}

Semantic roles & 50–950 ramp

primary

#355D99

secondary

#B99C71

accent

#A250D8

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #355D99

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

Preview Lab → · Contrast checker → · Palette generator →