#3758C8#3758C8

#3758C8 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.3% C 0.178 H 267.2°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#3758C8
RGB	rgb(55, 88, 200)
HSL	hsl(226, 57%, 50%)
HSV	hsv(226, 73%, 78%)
CMYK	cmyk(72.5%, 56%, 0%, 21.6%)
CIE-LAB	lab(41.15, 26.75, -61.82)
CIE-LCH	lch(41.15, 67.36, 293.40°)
OKLab	oklab(50.27% -0.0088 -0.1782)
OKLCH	oklch(50.27% 0.178 267.2)
XYZ	xyz(15.4870, 11.9602, 56.1247)
Luminance	0.1196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3758C8 #C8A737

analogous

#37A0C8 #3758C8 #5F37C8

triadic

#3758C8 #C83758 #58C837

tetradic

#3758C8 #C837A0 #C8A737 #37C85F

square

#3758C8 #C837A0 #C8A737 #37C85F

split-complementary

#3758C8 #C85F37 #A0C837

monochromatic

#1D2E68 #2A4398 #3758C8 #6780D5 #97A8E2

Accessibility & contrast

On white

6.19

#3758C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#3758C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3758C8

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3758C8	#FFFFFF	#000000	##FFFFFF
##3758C8	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CC

Deuteranopia (green-blind)

#005BC6

Tritanopia (blue-blind)

#007487

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3758c8;
/* rgb */ color: rgb(55, 88, 200);
/* oklch */ color: oklch(50.3% 0.178 267.2);

Tailwind

colors: {
  custom: {
    50: '#8186da',
    500: '#3758c8',
    950: '#000000',
  },
}

SCSS

$custom: #3758c8;
$custom-light: #8186da;
$custom-dark: #000000;

JSON

{
  "hex": "#3758c8",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 200
  },
  "hsl": {
    "h": 226.345,
    "s": 56.863,
    "l": 50
  },
  "oklch": {
    "l": 0.50265,
    "c": 0.17839,
    "h": 267.2
  },
  "luminance": 0.11962
}

Semantic roles & 50–950 ramp

primary

#3758C8

secondary

#CEBF8D

accent

#BD48E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3758C8

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

Preview Lab → · Contrast checker → · Palette generator →