#3758AA#3758AA

#3758AA is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.0% C 0.137 H 265.1°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#3758AA
RGB	rgb(55, 88, 170)
HSL	hsl(223, 51%, 44%)
HSV	hsv(223, 68%, 67%)
CMYK	cmyk(67.6%, 48.2%, 0%, 33.3%)
CIE-LAB	lab(39.06, 15.71, -47.64)
CIE-LCH	lch(39.06, 50.16, 288.25°)
OKLab	oklab(48.01% -0.0116 -0.1365)
OKLCH	oklch(48.01% 0.137 265.1)
XYZ	xyz(12.3184, 10.6928, 39.4371)
Luminance	0.1069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3758AA #AA8937

analogous

#3792AA #3758AA #5037AA

triadic

#3758AA #AA3758 #58AA37

tetradic

#3758AA #AA3792 #AA8937 #37AA50

square

#3758AA #AA3792 #AA8937 #37AA50

split-complementary

#3758AA #AA5037 #92AA37

monochromatic

#19284E #28407C #3758AA #5677C8 #849CD7

Accessibility & contrast

On white

6.69

#3758AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#3758AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3758AA

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3758AA	#FFFFFF	#000000	##FFFFFF
##3758AA	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D62AD

Deuteranopia (green-blind)

#1357A8

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3758aa;
/* rgb */ color: rgb(55, 88, 170);
/* oklch */ color: oklch(48.0% 0.137 265.1);

Tailwind

colors: {
  custom: {
    50: '#7b86c4',
    500: '#3758aa',
    950: '#000000',
  },
}

SCSS

$custom: #3758aa;
$custom-light: #7b86c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3758aa",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 170
  },
  "hsl": {
    "h": 222.783,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.48013,
    "c": 0.13695,
    "h": 265.1
  },
  "luminance": 0.10694
}

Semantic roles & 50–950 ramp

primary

#3758AA

secondary

#C1AD7C

accent

#B24DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3758AA

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

Preview Lab → · Contrast checker → · Palette generator →