#355DA5#355DA5

#355DA5 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.7% C 0.124 H 261.2°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#355DA5
RGB	rgb(53, 93, 165)
HSL	hsl(219, 51%, 43%)
HSV	hsv(219, 68%, 65%)
CMYK	cmyk(67.9%, 43.6%, 0%, 35.3%)
CIE-LAB	lab(40.08, 10.29, -43.03)
CIE-LCH	lch(40.08, 44.25, 283.44°)
OKLab	oklab(48.67% -0.0191 -0.1229)
OKLCH	oklch(48.67% 0.124 261.2)
XYZ	xyz(12.1717, 11.3010, 37.1299)
Luminance	0.1130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DA5 #A57D35

analogous

#3595A5 #355DA5 #4535A5

triadic

#355DA5 #A5355D #5DA535

tetradic

#355DA5 #A53595 #A57D35 #35A545

square

#355DA5 #A53595 #A57D35 #35A545

split-complementary

#355DA5 #A54535 #95A535

monochromatic

#172948 #264377 #355DA5 #507BC7 #7F9ED6

Accessibility & contrast

On white

6.44

#355DA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#355DA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DA5

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DA5	#FFFFFF	#000000	##FFFFFF
##355DA5	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B64A8

Deuteranopia (green-blind)

#285AA4

Tritanopia (blue-blind)

#006E79

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #355da5;
/* rgb */ color: rgb(53, 93, 165);
/* oklch */ color: oklch(48.7% 0.124 261.2);

Tailwind

colors: {
  custom: {
    50: '#798ac0',
    500: '#355da5',
    950: '#000000',
  },
}

SCSS

$custom: #355da5;
$custom-light: #798ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#355da5",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 165
  },
  "hsl": {
    "h": 218.571,
    "s": 51.376,
    "l": 42.745
  },
  "oklch": {
    "l": 0.48673,
    "c": 0.12436,
    "h": 261.2
  },
  "luminance": 0.11302
}

Semantic roles & 50–950 ramp

primary

#355DA5

secondary

#BFA577

accent

#A84DDB

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #355DA5

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

Preview Lab → · Contrast checker → · Palette generator →