#375A9B#375A9B

#375A9B is a mid, moderate blue. Relative luminance 0.105; OKLCH L 47.4% C 0.113 H 261.7°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#375A9B
RGB	rgb(55, 90, 155)
HSL	hsl(219, 48%, 41%)
HSV	hsv(219, 65%, 61%)
CMYK	cmyk(64.5%, 41.9%, 0%, 39.2%)
CIE-LAB	lab(38.71, 8.92, -39.26)
CIE-LCH	lch(38.71, 40.26, 282.81°)
OKLab	oklab(47.45% -0.0163 -0.1118)
OKLCH	oklch(47.45% 0.113 261.7)
XYZ	xyz(11.1460, 10.4901, 32.4414)
Luminance	0.1049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375A9B #9B7837

analogous

#378C9B #375A9B #46379B

triadic

#375A9B #9B375A #5A9B37

tetradic

#375A9B #9B378C #9B7837 #379B46

square

#375A9B #9B378C #9B7837 #379B46

split-complementary

#375A9B #9B4637 #8C9B37

monochromatic

#172641 #27406E #375A9B #4F77C0 #7C9AD0

Accessibility & contrast

On white

6.78

#375A9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#375A9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375A9B

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375A9B	#FFFFFF	#000000	##FFFFFF
##375A9B	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D609E

Deuteranopia (green-blind)

#2E579A

Tritanopia (blue-blind)

#006973

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #375a9b;
/* rgb */ color: rgb(55, 90, 155);
/* oklch */ color: oklch(47.4% 0.113 261.7);

Tailwind

colors: {
  custom: {
    50: '#7888b9',
    500: '#375a9b',
    950: '#000000',
  },
}

SCSS

$custom: #375a9b;
$custom-light: #7888b9;
$custom-dark: #000000;

JSON

{
  "hex": "#375a9b",
  "rgb": {
    "r": 55,
    "g": 90,
    "b": 155
  },
  "hsl": {
    "h": 219,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.47445,
    "c": 0.11298,
    "h": 261.7
  },
  "luminance": 0.10491
}

Semantic roles & 50–950 ramp

primary

#375A9B

secondary

#BAA174

accent

#A851D7

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #375A9B

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

Preview Lab → · Contrast checker → · Palette generator →