#375FB9#375FB9

#375FB9 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.6% C 0.149 H 263.9°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#375FB9
RGB	rgb(55, 95, 185)
HSL	hsl(222, 54%, 47%)
HSV	hsv(222, 70%, 73%)
CMYK	cmyk(70.3%, 48.6%, 0%, 27.5%)
CIE-LAB	lab(42.00, 16.70, -51.73)
CIE-LCH	lch(42.00, 54.36, 287.89°)
OKLab	oklab(50.57% -0.016 -0.1484)
OKLCH	oklch(50.57% 0.149 263.9)
XYZ	xyz(14.4216, 12.4979, 47.5418)
Luminance	0.1250 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375FB9 #B99137

analogous

#37A0B9 #375FB9 #5037B9

triadic

#375FB9 #B9375F #5FB937

tetradic

#375FB9 #B937A0 #B99137 #37B950

square

#375FB9 #B937A0 #B99137 #37B950

split-complementary

#375FB9 #B95037 #A0B937

monochromatic

#1B2F5B #29478A #375FB9 #5E81CF #8DA6DD

Accessibility & contrast

On white

6.00

#375FB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#375FB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375FB9

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375FB9	#FFFFFF	#000000	##FFFFFF
##375FB9	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E69BC

Deuteranopia (green-blind)

#065DB7

Tritanopia (blue-blind)

#007483

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #375fb9;
/* rgb */ color: rgb(55, 95, 185);
/* oklch */ color: oklch(50.6% 0.149 263.9);

Tailwind

colors: {
  custom: {
    50: '#7d8bcf',
    500: '#375fb9',
    950: '#000000',
  },
}

SCSS

$custom: #375fb9;
$custom-light: #7d8bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#375fb9",
  "rgb": {
    "r": 55,
    "g": 95,
    "b": 185
  },
  "hsl": {
    "h": 221.538,
    "s": 54.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.50572,
    "c": 0.14926,
    "h": 263.9
  },
  "luminance": 0.12499
}

Semantic roles & 50–950 ramp

primary

#375FB9

secondary

#C8B384

accent

#B04ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #375FB9

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

Preview Lab → · Contrast checker → · Palette generator →