#355DC8#355DC8

#355DC8 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.2% C 0.173 H 265.3°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#355DC8
RGB	rgb(53, 93, 200)
HSL	hsl(224, 58%, 50%)
HSV	hsv(224, 74%, 78%)
CMYK	cmyk(73.5%, 53.5%, 0%, 21.6%)
CIE-LAB	lab(42.39, 23.26, -59.82)
CIE-LCH	lch(42.39, 64.18, 291.25°)
OKLab	oklab(51.17% -0.0143 -0.1722)
OKLCH	oklch(51.17% 0.173 265.3)
XYZ	xyz(15.8042, 12.7540, 56.2612)
Luminance	0.1276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DC8 #C8A035

analogous

#35A7C8 #355DC8 #5635C8

triadic

#355DC8 #C8355D #5DC835

tetradic

#355DC8 #C835A7 #C8A035 #35C856

square

#355DC8 #C835A7 #C8A035 #35C856

split-complementary

#355DC8 #C85635 #A7C835

monochromatic

#1B3067 #284798 #355DC8 #6483D6 #95AAE3

Accessibility & contrast

On white

5.91

#355DC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#355DC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DC8

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DC8	#FFFFFF	#000000	##FFFFFF
##355DC8	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#086BCC

Deuteranopia (green-blind)

#005EC6

Tritanopia (blue-blind)

#007789

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #355dc8;
/* rgb */ color: rgb(53, 93, 200);
/* oklch */ color: oklch(51.2% 0.173 265.3);

Tailwind

colors: {
  custom: {
    50: '#808ad9',
    500: '#355dc8',
    950: '#000000',
  },
}

SCSS

$custom: #355dc8;
$custom-light: #808ad9;
$custom-dark: #000000;

JSON

{
  "hex": "#355dc8",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 200
  },
  "hsl": {
    "h": 223.673,
    "s": 58.103,
    "l": 49.608
  },
  "oklch": {
    "l": 0.51174,
    "c": 0.17284,
    "h": 265.3
  },
  "luminance": 0.12756
}

Semantic roles & 50–950 ramp

primary

#355DC8

secondary

#CEBC8B

accent

#B746E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #355DC8

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

Preview Lab → · Contrast checker → · Palette generator →