#355B8B#355B8B

#355B8B is a mid, moderate cyan. Relative luminance 0.101; OKLCH L 46.6% C 0.090 H 255.0°. Best body text is #FFFFFF at 6.95:1 contrast (WCAG AA passes).

Color values

HEX	#355B8B
RGB	rgb(53, 91, 139)
HSL	hsl(213, 45%, 38%)
HSV	hsv(213, 62%, 55%)
CMYK	cmyk(61.9%, 34.5%, 0%, 45.5%)
CIE-LAB	lab(38.03, 2.13, -30.70)
CIE-LCH	lch(38.03, 30.77, 273.97°)
OKLab	oklab(46.6% -0.0232 -0.0868)
OKLCH	oklch(46.6% 0.09 255)
XYZ	xyz(9.8678, 10.1022, 25.8510)
Luminance	0.1010 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355B8B #8B6535

analogous

#35868B #355B8B #3A358B

triadic

#355B8B #8B355B #5B8B35

tetradic

#355B8B #8B3586 #8B6535 #358B3A

square

#355B8B #8B3586 #8B6535 #358B3A

split-complementary

#355B8B #8B3A35 #868B35

monochromatic

#132132 #243E5F #355B8B #4678B7 #7198C9

Accessibility & contrast

On white

6.95

#355B8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#355B8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355B8B

6.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355B8B	#FFFFFF	#000000	##FFFFFF
##355B8B	1.00	6.95	3.02	6.95
#FFFFFF	6.95	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475E8D

Deuteranopia (green-blind)

#3B568A

Tritanopia (blue-blind)

#00666C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #355b8b;
/* rgb */ color: rgb(53, 91, 139);
/* oklch */ color: oklch(46.6% 0.090 255.0);

Tailwind

colors: {
  custom: {
    50: '#7489ad',
    500: '#355b8b',
    950: '#000000',
  },
}

SCSS

$custom: #355b8b;
$custom-light: #7489ad;
$custom-dark: #000000;

JSON

{
  "hex": "#355b8b",
  "rgb": {
    "r": 53,
    "g": 91,
    "b": 139
  },
  "hsl": {
    "h": 213.488,
    "s": 44.792,
    "l": 37.647
  },
  "oklch": {
    "l": 0.46599,
    "c": 0.08984,
    "h": 255
  },
  "luminance": 0.10103
}

Semantic roles & 50–950 ramp

primary

#355B8B

secondary

#B1926A

accent

#9B53D4

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#090B10

muted

#7B7C7F

Preview Lab

Preview with #355B8B

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

Preview Lab → · Contrast checker → · Palette generator →