#375FB8#375FB8

#375FB8 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.5% C 0.148 H 263.7°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#375FB8
RGB	rgb(55, 95, 184)
HSL	hsl(221, 54%, 47%)
HSV	hsv(221, 70%, 72%)
CMYK	cmyk(70.1%, 48.4%, 0%, 27.8%)
CIE-LAB	lab(41.93, 16.33, -51.26)
CIE-LCH	lch(41.93, 53.79, 287.67°)
OKLab	oklab(50.5% -0.0161 -0.147)
OKLCH	oklch(50.5% 0.148 263.7)
XYZ	xyz(14.3164, 12.4559, 46.9878)
Luminance	0.1246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375FB8 #B89037

analogous

#37A0B8 #375FB8 #4F37B8

triadic

#375FB8 #B8375F #5FB837

tetradic

#375FB8 #B837A0 #B89037 #37B84F

square

#375FB8 #B837A0 #B89037 #37B84F

split-complementary

#375FB8 #B84F37 #A0B837

monochromatic

#1B2E5A #294789 #375FB8 #5D81CF #8DA5DD

Accessibility & contrast

On white

6.01

#375FB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#375FB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375FB8

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375FB8	#FFFFFF	#000000	##FFFFFF
##375FB8	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F69BB

Deuteranopia (green-blind)

#0B5DB6

Tritanopia (blue-blind)

#007482

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #375fb8;
/* rgb */ color: rgb(55, 95, 184);
/* oklch */ color: oklch(50.5% 0.148 263.7);

Tailwind

colors: {
  custom: {
    50: '#7d8bce',
    500: '#375fb8',
    950: '#000000',
  },
}

SCSS

$custom: #375fb8;
$custom-light: #7d8bce;
$custom-dark: #000000;

JSON

{
  "hex": "#375fb8",
  "rgb": {
    "r": 55,
    "g": 95,
    "b": 184
  },
  "hsl": {
    "h": 221.395,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.50501,
    "c": 0.14787,
    "h": 263.7
  },
  "luminance": 0.12457
}

Semantic roles & 50–950 ramp

primary

#375FB8

secondary

#C7B284

accent

#B04ADD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #375FB8

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

Preview Lab → · Contrast checker → · Palette generator →