#3758A8#3758A8

#3758A8 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.9% C 0.134 H 264.9°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#3758A8
RGB	rgb(55, 88, 168)
HSL	hsl(222, 51%, 44%)
HSV	hsv(222, 67%, 66%)
CMYK	cmyk(67.3%, 47.6%, 0%, 34.1%)
CIE-LAB	lab(38.93, 14.98, -46.66)
CIE-LCH	lch(38.93, 49.00, 287.80°)
OKLab	oklab(47.87% -0.0119 -0.1336)
OKLCH	oklch(47.87% 0.134 264.9)
XYZ	xyz(12.1307, 10.6177, 38.4483)
Luminance	0.1062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3758A8 #A88737

analogous

#3790A8 #3758A8 #4E37A8

triadic

#3758A8 #A83758 #58A837

tetradic

#3758A8 #A83790 #A88737 #37A84E

square

#3758A8 #A83790 #A88737 #37A84E

split-complementary

#3758A8 #A84E37 #90A837

monochromatic

#19284C #28407A #3758A8 #5576C7 #839BD6

Accessibility & contrast

On white

6.72

#3758A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3758A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3758A8

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3758A8	#FFFFFF	#000000	##FFFFFF
##3758A8	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F61AB

Deuteranopia (green-blind)

#1757A6

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3758a8;
/* rgb */ color: rgb(55, 88, 168);
/* oklch */ color: oklch(47.9% 0.134 264.9);

Tailwind

colors: {
  custom: {
    50: '#7a86c2',
    500: '#3758a8',
    950: '#000000',
  },
}

SCSS

$custom: #3758a8;
$custom-light: #7a86c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3758a8",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 168
  },
  "hsl": {
    "h": 222.478,
    "s": 50.673,
    "l": 43.725
  },
  "oklch": {
    "l": 0.47872,
    "c": 0.13411,
    "h": 264.9
  },
  "luminance": 0.10619
}

Semantic roles & 50–950 ramp

primary

#3758A8

secondary

#C0AC7B

accent

#B14EDA

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3758A8

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

Preview Lab → · Contrast checker → · Palette generator →