#375D99#375D99

#375D99 is a mid, moderate blue. Relative luminance 0.109; OKLCH L 48.0% C 0.107 H 259.2°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#375D99
RGB	rgb(55, 93, 153)
HSL	hsl(217, 47%, 41%)
HSV	hsv(217, 64%, 60%)
CMYK	cmyk(64.1%, 39.2%, 0%, 40%)
CIE-LAB	lab(39.48, 6.27, -36.83)
CIE-LCH	lch(39.48, 37.36, 279.66°)
OKLab	oklab(48.01% -0.02 -0.1047)
OKLCH	oklch(48.01% 0.107 259.2)
XYZ	xyz(11.2376, 10.9398, 31.6502)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375D99 #997337

analogous

#378E99 #375D99 #423799

triadic

#375D99 #99375D #5D9937

tetradic

#375D99 #99378E #997337 #379942

square

#375D99 #99378E #997337 #379942

split-complementary

#375D99 #994237 #8E9937

monochromatic

#17263F #27426C #375D99 #4E7ABF #7B9CD0

Accessibility & contrast

On white

6.59

#375D99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#375D99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375D99

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375D99	#FFFFFF	#000000	##FFFFFF
##375D99	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43629B

Deuteranopia (green-blind)

#355998

Tritanopia (blue-blind)

#006B73

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #375d99;
/* rgb */ color: rgb(55, 93, 153);
/* oklch */ color: oklch(48.0% 0.107 259.2);

Tailwind

colors: {
  custom: {
    50: '#778ab7',
    500: '#375d99',
    950: '#000000',
  },
}

SCSS

$custom: #375d99;
$custom-light: #778ab7;
$custom-dark: #000000;

JSON

{
  "hex": "#375d99",
  "rgb": {
    "r": 55,
    "g": 93,
    "b": 153
  },
  "hsl": {
    "h": 216.735,
    "s": 47.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.48005,
    "c": 0.10655,
    "h": 259.2
  },
  "luminance": 0.10941
}

Semantic roles & 50–950 ramp

primary

#375D99

secondary

#B99E73

accent

#A351D7

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#090B11

muted

#7B7C80

Preview Lab

Preview with #375D99

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

Preview Lab → · Contrast checker → · Palette generator →