#375B9B#375B9B

#375B9B is a mid, moderate blue. Relative luminance 0.107; OKLCH L 47.7% C 0.112 H 261.1°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#375B9B
RGB	rgb(55, 91, 155)
HSL	hsl(218, 48%, 41%)
HSV	hsv(218, 65%, 61%)
CMYK	cmyk(64.5%, 41.3%, 0%, 39.2%)
CIE-LAB	lab(39.00, 8.28, -38.79)
CIE-LCH	lch(39.00, 39.66, 282.05°)
OKLab	oklab(47.67% -0.0174 -0.1104)
OKLCH	oklch(47.67% 0.112 261.1)
XYZ	xyz(11.2309, 10.6599, 32.4697)
Luminance	0.1066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375B9B #9B7737

analogous

#378D9B #375B9B #45379B

triadic

#375B9B #9B375B #5B9B37

tetradic

#375B9B #9B378D #9B7737 #379B45

square

#375B9B #9B378D #9B7737 #379B45

split-complementary

#375B9B #9B4537 #8D9B37

monochromatic

#172641 #27406E #375B9B #4F78C0 #7C9AD0

Accessibility & contrast

On white

6.70

#375B9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#375B9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375B9B

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375B9B	#FFFFFF	#000000	##FFFFFF
##375B9B	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E619E

Deuteranopia (green-blind)

#30589A

Tritanopia (blue-blind)

#006A73

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #375b9b;
/* rgb */ color: rgb(55, 91, 155);
/* oklch */ color: oklch(47.7% 0.112 261.1);

Tailwind

colors: {
  custom: {
    50: '#7889b9',
    500: '#375b9b',
    950: '#000000',
  },
}

SCSS

$custom: #375b9b;
$custom-light: #7889b9;
$custom-dark: #000000;

JSON

{
  "hex": "#375b9b",
  "rgb": {
    "r": 55,
    "g": 91,
    "b": 155
  },
  "hsl": {
    "h": 218.4,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.47672,
    "c": 0.11178,
    "h": 261.1
  },
  "luminance": 0.10661
}

Semantic roles & 50–950 ramp

primary

#375B9B

secondary

#BAA174

accent

#A751D7

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #375B9B

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

Preview Lab → · Contrast checker → · Palette generator →