#375B99#375B99

#375B99 is a mid, moderate blue. Relative luminance 0.106; OKLCH L 47.5% C 0.109 H 260.6°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#375B99
RGB	rgb(55, 91, 153)
HSL	hsl(218, 47%, 41%)
HSV	hsv(218, 64%, 60%)
CMYK	cmyk(64.1%, 40.5%, 0%, 40%)
CIE-LAB	lab(38.89, 7.56, -37.77)
CIE-LCH	lch(38.89, 38.52, 281.31°)
OKLab	oklab(47.55% -0.0178 -0.1074)
OKLCH	oklch(47.55% 0.109 260.6)
XYZ	xyz(11.0644, 10.5933, 31.5924)
Luminance	0.1059 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375B99 #997537

analogous

#378C99 #375B99 #443799

triadic

#375B99 #99375B #5B9937

tetradic

#375B99 #99378C #997537 #379944

square

#375B99 #99378C #997537 #379944

split-complementary

#375B99 #994437 #8C9937

monochromatic

#17253F #27406C #375B99 #4E78BF #7B9AD0

Accessibility & contrast

On white

6.73

#375B99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#375B99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375B99

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375B99	#FFFFFF	#000000	##FFFFFF
##375B99	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#40609B

Deuteranopia (green-blind)

#325798

Tritanopia (blue-blind)

#006972

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #375b99;
/* rgb */ color: rgb(55, 91, 153);
/* oklch */ color: oklch(47.5% 0.109 260.6);

Tailwind

colors: {
  custom: {
    50: '#7789b7',
    500: '#375b99',
    950: '#000000',
  },
}

SCSS

$custom: #375b99;
$custom-light: #7789b7;
$custom-dark: #000000;

JSON

{
  "hex": "#375b99",
  "rgb": {
    "r": 55,
    "g": 91,
    "b": 153
  },
  "hsl": {
    "h": 217.959,
    "s": 47.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.47546,
    "c": 0.10891,
    "h": 260.6
  },
  "luminance": 0.10594
}

Semantic roles & 50–950 ramp

primary

#375B99

secondary

#B99F73

accent

#A651D7

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #375B99

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

Preview Lab → · Contrast checker → · Palette generator →