#375B9E#375B9E

#375B9E is a mid, moderate blue. Relative luminance 0.108; OKLCH L 47.9% C 0.116 H 261.7°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#375B9E
RGB	rgb(55, 91, 158)
HSL	hsl(219, 48%, 42%)
HSV	hsv(219, 65%, 62%)
CMYK	cmyk(65.2%, 42.4%, 0%, 38%)
CIE-LAB	lab(39.18, 9.37, -40.31)
CIE-LCH	lch(39.18, 41.38, 283.09°)
OKLab	oklab(47.86% -0.0167 -0.1149)
OKLCH	oklch(47.86% 0.116 261.7)
XYZ	xyz(11.4860, 10.7619, 33.8131)
Luminance	0.1076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375B9E #9E7A37

analogous

#378F9E #375B9E #47379E

triadic

#375B9E #9E375B #5B9E37

tetradic

#375B9E #9E378F #9E7A37 #379E47

square

#375B9E #9E378F #9E7A37 #379E47

split-complementary

#375B9E #9E4737 #8F9E37

monochromatic

#172743 #274171 #375B9E #5078C2 #7D9BD2

Accessibility & contrast

On white

6.66

#375B9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#375B9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375B9E

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375B9E	#FFFFFF	#000000	##FFFFFF
##375B9E	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C61A1

Deuteranopia (green-blind)

#2D589D

Tritanopia (blue-blind)

#006A75

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #375b9e;
/* rgb */ color: rgb(55, 91, 158);
/* oklch */ color: oklch(47.9% 0.116 261.7);

Tailwind

colors: {
  custom: {
    50: '#7889bb',
    500: '#375b9e',
    950: '#000000',
  },
}

SCSS

$custom: #375b9e;
$custom-light: #7889bb;
$custom-dark: #000000;

JSON

{
  "hex": "#375b9e",
  "rgb": {
    "r": 55,
    "g": 91,
    "b": 158
  },
  "hsl": {
    "h": 219.029,
    "s": 48.357,
    "l": 41.765
  },
  "oklch": {
    "l": 0.47864,
    "c": 0.11607,
    "h": 261.7
  },
  "luminance": 0.10763
}

Semantic roles & 50–950 ramp

primary

#375B9E

secondary

#BBA376

accent

#A850D8

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #375B9E

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

Preview Lab → · Contrast checker → · Palette generator →