#375D9B#375D9B

#375D9B is a mid, moderate blue. Relative luminance 0.110; OKLCH L 48.1% C 0.109 H 259.7°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#375D9B
RGB	rgb(55, 93, 155)
HSL	hsl(217, 48%, 41%)
HSV	hsv(217, 65%, 61%)
CMYK	cmyk(64.5%, 40%, 0%, 39.2%)
CIE-LAB	lab(39.59, 6.99, -37.85)
CIE-LCH	lch(39.59, 38.49, 280.47°)
OKLab	oklab(48.13% -0.0195 -0.1076)
OKLCH	oklch(48.13% 0.109 259.7)
XYZ	xyz(11.4042, 11.0064, 32.5274)
Luminance	0.1101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375D9B #9B7537

analogous

#378F9B #375D9B #43379B

triadic

#375D9B #9B375D #5D9B37

tetradic

#375D9B #9B378F #9B7537 #379B43

square

#375D9B #9B378F #9B7537 #379B43

split-complementary

#375D9B #9B4337 #8F9B37

monochromatic

#172741 #27426E #375D9B #4F7AC0 #7C9CD0

Accessibility & contrast

On white

6.56

#375D9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#375D9B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375D9B

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375D9B	#FFFFFF	#000000	##FFFFFF
##375D9B	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42629D

Deuteranopia (green-blind)

#33599A

Tritanopia (blue-blind)

#006B74

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #375d9b;
/* rgb */ color: rgb(55, 93, 155);
/* oklch */ color: oklch(48.1% 0.109 259.7);

Tailwind

colors: {
  custom: {
    50: '#788ab9',
    500: '#375d9b',
    950: '#000000',
  },
}

SCSS

$custom: #375d9b;
$custom-light: #788ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#375d9b",
  "rgb": {
    "r": 55,
    "g": 93,
    "b": 155
  },
  "hsl": {
    "h": 217.2,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.48129,
    "c": 0.1094,
    "h": 259.7
  },
  "luminance": 0.11007
}

Semantic roles & 50–950 ramp

primary

#375D9B

secondary

#BA9F74

accent

#A451D7

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #375D9B

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

Preview Lab → · Contrast checker → · Palette generator →