#3758AE#3758AE

#3758AE is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.3% C 0.143 H 265.6°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#3758AE
RGB	rgb(55, 88, 174)
HSL	hsl(223, 52%, 45%)
HSV	hsv(223, 68%, 68%)
CMYK	cmyk(68.4%, 49.4%, 0%, 31.8%)
CIE-LAB	lab(39.32, 17.18, -49.58)
CIE-LCH	lch(39.32, 52.48, 289.12°)
OKLab	oklab(48.3% -0.011 -0.1422)
OKLCH	oklch(48.3% 0.143 265.6)
XYZ	xyz(12.7026, 10.8464, 41.4603)
Luminance	0.1085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3758AE #AE8D37

analogous

#3794AE #3758AE #5137AE

triadic

#3758AE #AE3758 #58AE37

tetradic

#3758AE #AE3794 #AE8D37 #37AE51

square

#3758AE #AE3794 #AE8D37 #37AE51

split-complementary

#3758AE #AE5137 #94AE37

monochromatic

#1A2951 #28407F #3758AE #5878CA #869DD9

Accessibility & contrast

On white

6.63

#3758AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#3758AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3758AE

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3758AE	#FFFFFF	#000000	##FFFFFF
##3758AE	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2962B1

Deuteranopia (green-blind)

#0557AC

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3758ae;
/* rgb */ color: rgb(55, 88, 174);
/* oklch */ color: oklch(48.3% 0.143 265.6);

Tailwind

colors: {
  custom: {
    50: '#7c86c7',
    500: '#3758ae',
    950: '#000000',
  },
}

SCSS

$custom: #3758ae;
$custom-light: #7c86c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3758ae",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 174
  },
  "hsl": {
    "h": 223.361,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.48297,
    "c": 0.14261,
    "h": 265.6
  },
  "luminance": 0.10848
}

Semantic roles & 50–950 ramp

primary

#3758AE

secondary

#C3B07E

accent

#B44CDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3758AE

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

Preview Lab → · Contrast checker → · Palette generator →