#3758CD#3758CD

#3758CD is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.7% C 0.185 H 267.4°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#3758CD
RGB	rgb(55, 88, 205)
HSL	hsl(227, 60%, 51%)
HSV	hsv(227, 73%, 80%)
CMYK	cmyk(73.2%, 57.1%, 0%, 19.6%)
CIE-LAB	lab(41.53, 28.57, -64.10)
CIE-LCH	lch(41.53, 70.18, 294.03°)
OKLab	oklab(50.67% -0.0085 -0.1849)
OKLCH	oklch(50.67% 0.185 267.4)
XYZ	xyz(16.0809, 12.1977, 59.2527)
Luminance	0.1220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3758CD #CDAC37

analogous

#37A3CD #3758CD #6137CD

triadic

#3758CD #CD3758 #58CD37

tetradic

#3758CD #CD37A3 #CDAC37 #37CD61

square

#3758CD #CD37A3 #CDAC37 #37CD61

split-complementary

#3758CD #CD6137 #A3CD37

monochromatic

#1C2E6E #28429F #3758CD #6881D9 #99AAE5

Accessibility & contrast

On white

6.11

#3758CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#3758CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3758CD

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3758CD	#FFFFFF	#000000	##FFFFFF
##3758CD	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D1

Deuteranopia (green-blind)

#005BCB

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3758cd;
/* rgb */ color: rgb(55, 88, 205);
/* oklch */ color: oklch(50.7% 0.185 267.4);

Tailwind

colors: {
  custom: {
    50: '#8286dd',
    500: '#3758cd',
    950: '#000000',
  },
}

SCSS

$custom: #3758cd;
$custom-light: #8286dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3758cd",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 205
  },
  "hsl": {
    "h": 226.8,
    "s": 60,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50665,
    "c": 0.18508,
    "h": 267.4
  },
  "luminance": 0.12199
}

Semantic roles & 50–950 ramp

primary

#3758CD

secondary

#D1C38F

accent

#C045E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3758CD

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

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