#355B9D#355B9D

#355B9D is a mid, moderate blue. Relative luminance 0.107; OKLCH L 47.7% C 0.115 H 260.7°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#355B9D
RGB	rgb(53, 91, 157)
HSL	hsl(218, 50%, 41%)
HSV	hsv(218, 66%, 62%)
CMYK	cmyk(66.2%, 42%, 0%, 38.4%)
CIE-LAB	lab(39.02, 8.64, -39.96)
CIE-LCH	lch(39.02, 40.88, 282.20°)
OKLab	oklab(47.7% -0.0187 -0.1139)
OKLCH	oklch(47.7% 0.115 260.7)
XYZ	xyz(11.2929, 10.6723, 33.3566)
Luminance	0.1067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355B9D #9D7735

analogous

#358F9D #355B9D #43359D

triadic

#355B9D #9D355B #5B9D35

tetradic

#355B9D #9D358F #9D7735 #359D43

square

#355B9D #9D358F #9D7735 #359D43

split-complementary

#355B9D #9D4335 #8F9D35

monochromatic

#162641 #26406F #355B9D #4C78C3 #7A9AD2

Accessibility & contrast

On white

6.70

#355B9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#355B9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355B9D

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355B9D	#FFFFFF	#000000	##FFFFFF
##355B9D	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D61A0

Deuteranopia (green-blind)

#2D579C

Tritanopia (blue-blind)

#006A74

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #355b9d;
/* rgb */ color: rgb(53, 91, 157);
/* oklch */ color: oklch(47.7% 0.115 260.7);

Tailwind

colors: {
  custom: {
    50: '#7789ba',
    500: '#355b9d',
    950: '#000000',
  },
}

SCSS

$custom: #355b9d;
$custom-light: #7789ba;
$custom-dark: #000000;

JSON

{
  "hex": "#355b9d",
  "rgb": {
    "r": 53,
    "g": 91,
    "b": 157
  },
  "hsl": {
    "h": 218.077,
    "s": 49.524,
    "l": 41.176
  },
  "oklch": {
    "l": 0.477,
    "c": 0.11541,
    "h": 260.7
  },
  "luminance": 0.10673
}

Semantic roles & 50–950 ramp

primary

#355B9D

secondary

#BBA173

accent

#A74FD9

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #355B9D

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

Preview Lab → · Contrast checker → · Palette generator →