#375AD9#375AD9

#375AD9 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 52.0% C 0.198 H 267.2°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#375AD9
RGB	rgb(55, 90, 217)
HSL	hsl(227, 68%, 53%)
HSV	hsv(227, 75%, 85%)
CMYK	cmyk(74.7%, 58.5%, 0%, 14.9%)
CIE-LAB	lab(42.96, 31.66, -68.65)
CIE-LCH	lch(42.96, 75.60, 294.76°)
OKLab	oklab(52.03% -0.0096 -0.1982)
OKLCH	oklch(52.03% 0.198 267.2)
XYZ	xyz(17.7517, 13.1324, 67.2314)
Luminance	0.1313 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375AD9 #D9B637

analogous

#37ABD9 #375AD9 #6537D9

triadic

#375AD9 #D9375A #5AD937

tetradic

#375AD9 #D937AB #D9B637 #37D965

square

#375AD9 #D937AB #D9B637 #37D965

split-complementary

#375AD9 #D96537 #ABD937

monochromatic

#182E7E #2241B1 #375AD9 #6A84E3 #9EAFED

Accessibility & contrast

On white

5.79

#375AD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#375AD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375AD9

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375AD9	#FFFFFF	#000000	##FFFFFF
##375AD9	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DDD

Deuteranopia (green-blind)

#005ED7

Tritanopia (blue-blind)

#007A91

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #375ad9;
/* rgb */ color: rgb(55, 90, 217);
/* oklch */ color: oklch(52.0% 0.198 267.2);

Tailwind

colors: {
  custom: {
    50: '#8588e6',
    500: '#375ad9',
    950: '#000000',
  },
}

SCSS

$custom: #375ad9;
$custom-light: #8588e6;
$custom-dark: #000000;

JSON

{
  "hex": "#375ad9",
  "rgb": {
    "r": 55,
    "g": 90,
    "b": 217
  },
  "hsl": {
    "h": 227.037,
    "s": 68.067,
    "l": 53.333
  },
  "oklch": {
    "l": 0.52026,
    "c": 0.19845,
    "h": 267.2
  },
  "luminance": 0.13134
}

Semantic roles & 50–950 ramp

primary

#375AD9

secondary

#D9CA93

accent

#C53DEB

background

#F8F8FE

surface

#F0EFFC

border

#CBCAD5

text

#0D0B16

muted

#7D7C84

Preview Lab

Preview with #375AD9

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

Preview Lab → · Contrast checker → · Palette generator →