#355FBC#355FBC

#355FBC is a mid, vivid blue. Relative luminance 0.126; OKLCH L 50.7% C 0.154 H 263.6°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#355FBC
RGB	rgb(53, 95, 188)
HSL	hsl(221, 56%, 47%)
HSV	hsv(221, 72%, 74%)
CMYK	cmyk(71.8%, 49.5%, 0%, 26.3%)
CIE-LAB	lab(42.11, 17.52, -53.31)
CIE-LCH	lch(42.11, 56.11, 288.19°)
OKLab	oklab(50.7% -0.0172 -0.1531)
OKLCH	oklch(50.7% 0.154 263.6)
XYZ	xyz(14.6343, 12.5706, 49.2223)
Luminance	0.1257 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FBC #BC9235

analogous

#35A3BC #355FBC #4E35BC

triadic

#355FBC #BC355F #5FBC35

tetradic

#355FBC #BC35A3 #BC9235 #35BC4E

square

#355FBC #BC35A3 #BC9235 #35BC4E

split-complementary

#355FBC #BC4E35 #A3BC35

monochromatic

#1A2F5D #28478C #355FBC #5D81D1 #8DA6DF

Accessibility & contrast

On white

5.98

#355FBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#355FBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FBC

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FBC	#FFFFFF	#000000	##FFFFFF
##355FBC	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A6ABF

Deuteranopia (green-blind)

#005EBA

Tritanopia (blue-blind)

#007584

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #355fbc;
/* rgb */ color: rgb(53, 95, 188);
/* oklch */ color: oklch(50.7% 0.154 263.6);

Tailwind

colors: {
  custom: {
    50: '#7d8bd1',
    500: '#355fbc',
    950: '#000000',
  },
}

SCSS

$custom: #355fbc;
$custom-light: #7d8bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#355fbc",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 188
  },
  "hsl": {
    "h": 221.333,
    "s": 56.017,
    "l": 47.255
  },
  "oklch": {
    "l": 0.50697,
    "c": 0.15403,
    "h": 263.6
  },
  "luminance": 0.12572
}

Semantic roles & 50–950 ramp

primary

#355FBC

secondary

#C9B484

accent

#B048DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #355FBC

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

Preview Lab → · Contrast checker → · Palette generator →