#355CBC#355CBC

#355CBC is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.1% C 0.158 H 264.7°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#355CBC
RGB	rgb(53, 92, 188)
HSL	hsl(223, 56%, 47%)
HSV	hsv(223, 72%, 74%)
CMYK	cmyk(71.8%, 51.1%, 0%, 26.3%)
CIE-LAB	lab(41.28, 19.46, -54.64)
CIE-LCH	lch(41.28, 58.01, 289.60°)
OKLab	oklab(50.07% -0.0146 -0.157)
OKLCH	oklch(50.07% 0.158 264.7)
XYZ	xyz(14.3692, 12.0405, 49.1340)
Luminance	0.1204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355CBC #BC9535

analogous

#359FBC #355CBC #5235BC

triadic

#355CBC #BC355C #5CBC35

tetradic

#355CBC #BC359F #BC9535 #35BC52

square

#355CBC #BC359F #BC9535 #35BC52

split-complementary

#355CBC #BC5235 #9FBC35

monochromatic

#1A2D5D #28458C #355CBC #5D7FD1 #8DA4DF

Accessibility & contrast

On white

6.16

#355CBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#355CBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355CBC

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355CBC	#FFFFFF	#000000	##FFFFFF
##355CBC	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2168BF

Deuteranopia (green-blind)

#005BBA

Tritanopia (blue-blind)

#007383

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #355cbc;
/* rgb */ color: rgb(53, 92, 188);
/* oklch */ color: oklch(50.1% 0.158 264.7);

Tailwind

colors: {
  custom: {
    50: '#7d89d1',
    500: '#355cbc',
    950: '#000000',
  },
}

SCSS

$custom: #355cbc;
$custom-light: #7d89d1;
$custom-dark: #000000;

JSON

{
  "hex": "#355cbc",
  "rgb": {
    "r": 53,
    "g": 92,
    "b": 188
  },
  "hsl": {
    "h": 222.667,
    "s": 56.017,
    "l": 47.255
  },
  "oklch": {
    "l": 0.50066,
    "c": 0.15773,
    "h": 264.7
  },
  "luminance": 0.12042
}

Semantic roles & 50–950 ramp

primary

#355CBC

secondary

#C9B584

accent

#B448DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #355CBC

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

Preview Lab → · Contrast checker → · Palette generator →