#355EBB#355EBB

#355EBB is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.4% C 0.154 H 263.8°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#355EBB
RGB	rgb(53, 94, 187)
HSL	hsl(222, 56%, 47%)
HSV	hsv(222, 72%, 73%)
CMYK	cmyk(71.7%, 49.7%, 0%, 26.7%)
CIE-LAB	lab(41.76, 17.79, -53.28)
CIE-LCH	lch(41.76, 56.17, 288.47°)
OKLab	oklab(50.41% -0.0165 -0.153)
OKLCH	oklch(50.41% 0.154 263.8)
XYZ	xyz(14.4374, 12.3486, 48.6267)
Luminance	0.1235 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355EBB #BB9235

analogous

#35A1BB #355EBB #4F35BB

triadic

#355EBB #BB355E #5EBB35

tetradic

#355EBB #BB35A1 #BB9235 #35BB4F

square

#355EBB #BB35A1 #BB9235 #35BB4F

split-complementary

#355EBB #BB4F35 #A1BB35

monochromatic

#1A2E5C #27468B #355EBB #5C80D1 #8CA5DE

Accessibility & contrast

On white

6.05

#355EBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#355EBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355EBB

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355EBB	#FFFFFF	#000000	##FFFFFF
##355EBB	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2869BE

Deuteranopia (green-blind)

#005DB9

Tritanopia (blue-blind)

#007483

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #355ebb;
/* rgb */ color: rgb(53, 94, 187);
/* oklch */ color: oklch(50.4% 0.154 263.8);

Tailwind

colors: {
  custom: {
    50: '#7d8bd0',
    500: '#355ebb',
    950: '#000000',
  },
}

SCSS

$custom: #355ebb;
$custom-light: #7d8bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#355ebb",
  "rgb": {
    "r": 53,
    "g": 94,
    "b": 187
  },
  "hsl": {
    "h": 221.642,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.50414,
    "c": 0.15389,
    "h": 263.8
  },
  "luminance": 0.1235
}

Semantic roles & 50–950 ramp

primary

#355EBB

secondary

#C9B383

accent

#B149DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #355EBB

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

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