#3758A6#3758A6

#3758A6 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.7% C 0.131 H 264.7°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3758A6
RGB	rgb(55, 88, 166)
HSL	hsl(222, 50%, 43%)
HSV	hsv(222, 67%, 65%)
CMYK	cmyk(66.9%, 47%, 0%, 34.9%)
CIE-LAB	lab(38.80, 14.24, -45.67)
CIE-LCH	lch(38.80, 47.84, 287.32°)
OKLab	oklab(47.73% -0.0122 -0.1307)
OKLCH	oklch(47.73% 0.131 264.7)
XYZ	xyz(11.9458, 10.5437, 37.4746)
Luminance	0.1055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3758A6 #A68537

analogous

#378FA6 #3758A6 #4D37A6

triadic

#3758A6 #A63758 #58A637

tetradic

#3758A6 #A6378F #A68537 #37A64D

square

#3758A6 #A6378F #A68537 #37A64D

split-complementary

#3758A6 #A64D37 #8FA637

monochromatic

#19274A #284078 #3758A6 #5476C6 #829BD6

Accessibility & contrast

On white

6.75

#3758A6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3758A6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3758A6

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3758A6	#FFFFFF	#000000	##FFFFFF
##3758A6	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3161A9

Deuteranopia (green-blind)

#1B57A4

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3758a6;
/* rgb */ color: rgb(55, 88, 166);
/* oklch */ color: oklch(47.7% 0.131 264.7);

Tailwind

colors: {
  custom: {
    50: '#7a86c1',
    500: '#3758a6',
    950: '#000000',
  },
}

SCSS

$custom: #3758a6;
$custom-light: #7a86c1;
$custom-dark: #000000;

JSON

{
  "hex": "#3758a6",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 166
  },
  "hsl": {
    "h": 222.162,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.47733,
    "c": 0.13125,
    "h": 264.7
  },
  "luminance": 0.10545
}

Semantic roles & 50–950 ramp

primary

#3758A6

secondary

#BFAA7A

accent

#B04EDA

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3758A6

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

Preview Lab → · Contrast checker → · Palette generator →