#375BC5#375BC5

#375BC5 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.6% C 0.171 H 266.2°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#375BC5
RGB	rgb(55, 91, 197)
HSL	hsl(225, 56%, 49%)
HSV	hsv(225, 72%, 77%)
CMYK	cmyk(72.1%, 53.8%, 0%, 22.7%)
CIE-LAB	lab(41.73, 23.71, -59.15)
CIE-LCH	lch(41.73, 63.73, 291.84°)
OKLab	oklab(50.63% -0.0113 -0.1703)
OKLCH	oklch(50.63% 0.171 266.2)
XYZ	xyz(15.3912, 12.3240, 54.3801)
Luminance	0.1233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375BC5 #C5A137

analogous

#37A2C5 #375BC5 #5A37C5

triadic

#375BC5 #C5375B #5BC537

tetradic

#375BC5 #C537A2 #C5A137 #37C55A

square

#375BC5 #C537A2 #C5A137 #37C55A

split-complementary

#375BC5 #C55A37 #A2C537

monochromatic

#1C2F65 #2A4595 #375BC5 #6581D4 #95A8E1

Accessibility & contrast

On white

6.06

#375BC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#375BC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375BC5

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375BC5	#FFFFFF	#000000	##FFFFFF
##375BC5	1.00	6.06	3.47	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0569C9

Deuteranopia (green-blind)

#005CC3

Tritanopia (blue-blind)

#007587

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #375bc5;
/* rgb */ color: rgb(55, 91, 197);
/* oklch */ color: oklch(50.6% 0.171 266.2);

Tailwind

colors: {
  custom: {
    50: '#8088d7',
    500: '#375bc5',
    950: '#000000',
  },
}

SCSS

$custom: #375bc5;
$custom-light: #8088d7;
$custom-dark: #000000;

JSON

{
  "hex": "#375bc5",
  "rgb": {
    "r": 55,
    "g": 91,
    "b": 197
  },
  "hsl": {
    "h": 224.789,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.50628,
    "c": 0.17066,
    "h": 266.2
  },
  "luminance": 0.12326
}

Semantic roles & 50–950 ramp

primary

#375BC5

secondary

#CDBC8B

accent

#B948E0

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #375BC5

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

Preview Lab → · Contrast checker → · Palette generator →