#355EA1#355EA1

#355EA1 is a mid, moderate blue. Relative luminance 0.113; OKLCH L 48.6% C 0.118 H 259.7°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#355EA1
RGB	rgb(53, 94, 161)
HSL	hsl(217, 50%, 42%)
HSV	hsv(217, 67%, 63%)
CMYK	cmyk(67.1%, 41.6%, 0%, 36.9%)
CIE-LAB	lab(40.14, 8.17, -40.57)
CIE-LCH	lch(40.14, 41.38, 281.39°)
OKLab	oklab(48.64% -0.0209 -0.1156)
OKLCH	oklch(48.64% 0.118 259.7)
XYZ	xyz(11.9016, 11.3343, 35.2718)
Luminance	0.1134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355EA1 #A17835

analogous

#3594A1 #355EA1 #4235A1

triadic

#355EA1 #A1355E #5EA135

tetradic

#355EA1 #A13594 #A17835 #35A142

square

#355EA1 #A13594 #A17835 #35A142

split-complementary

#355EA1 #A14235 #94A135

monochromatic

#172845 #264373 #355EA1 #4E7BC5 #7C9ED4

Accessibility & contrast

On white

6.43

#355EA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#355EA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355EA1

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355EA1	#FFFFFF	#000000	##FFFFFF
##355EA1	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F64A4

Deuteranopia (green-blind)

#2F5AA0

Tritanopia (blue-blind)

#006D77

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #355ea1;
/* rgb */ color: rgb(53, 94, 161);
/* oklch */ color: oklch(48.6% 0.118 259.7);

Tailwind

colors: {
  custom: {
    50: '#788bbd',
    500: '#355ea1',
    950: '#000000',
  },
}

SCSS

$custom: #355ea1;
$custom-light: #788bbd;
$custom-dark: #000000;

JSON

{
  "hex": "#355ea1",
  "rgb": {
    "r": 53,
    "g": 94,
    "b": 161
  },
  "hsl": {
    "h": 217.222,
    "s": 50.467,
    "l": 41.961
  },
  "oklch": {
    "l": 0.48639,
    "c": 0.11751,
    "h": 259.7
  },
  "luminance": 0.11336
}

Semantic roles & 50–950 ramp

primary

#355EA1

secondary

#BDA275

accent

#A54EDA

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #355EA1

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

Preview Lab → · Contrast checker → · Palette generator →