#3775EB#3775EB

#3775EB is a mid, vivid blue. Relative luminance 0.195; OKLCH L 58.7% C 0.190 H 261.7°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#3775EB
RGB	rgb(55, 117, 235)
HSL	hsl(219, 82%, 57%)
HSV	hsv(219, 77%, 92%)
CMYK	cmyk(76.6%, 50.2%, 0%, 7.8%)
CIE-LAB	lab(51.30, 21.15, -65.29)
CIE-LCH	lch(51.30, 68.63, 287.95°)
OKLab	oklab(58.73% -0.0275 -0.1879)
OKLCH	oklch(58.73% 0.19 261.7)
XYZ	xyz(22.9268, 19.5303, 81.1426)
Luminance	0.1953 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3775EB #EBAD37

analogous

#37CFEB #3775EB #5337EB

triadic

#3775EB #EB3775 #75EB37

tetradic

#3775EB #EB37CF #EBAD37 #37EB53

square

#3775EB #EB37CF #EBAD37 #37EB53

split-complementary

#3775EB #EB5337 #CFEB37

monochromatic

#0F3E98 #1555D0 #3775EB #6F9BF1 #A6C2F6

Accessibility & contrast

On white

4.28

#3775EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#3775EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3775EB

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3775EB	#FFFFFF	#000000	##000000
##3775EB	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A83EF

Deuteranopia (green-blind)

#0072E9

Tritanopia (blue-blind)

#0091A5

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3775eb;
/* rgb */ color: rgb(55, 117, 235);
/* oklch */ color: oklch(58.7% 0.190 261.7);

Tailwind

colors: {
  custom: {
    50: '#879cf2',
    500: '#3775eb',
    950: '#000000',
  },
}

SCSS

$custom: #3775eb;
$custom-light: #879cf2;
$custom-dark: #000000;

JSON

{
  "hex": "#3775eb",
  "rgb": {
    "r": 55,
    "g": 117,
    "b": 235
  },
  "hsl": {
    "h": 219.333,
    "s": 81.818,
    "l": 56.863
  },
  "oklch": {
    "l": 0.58732,
    "c": 0.1899,
    "h": 261.7
  },
  "luminance": 0.19533
}

Semantic roles & 50–950 ramp

primary

#3775EB

secondary

#E4CA9A

accent

#B330F8

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #3775EB

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

Preview Lab → · Contrast checker → · Palette generator →