#375AB3#375AB3

#375AB3 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.1% C 0.147 H 265.2°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#375AB3
RGB	rgb(55, 90, 179)
HSL	hsl(223, 53%, 46%)
HSV	hsv(223, 69%, 70%)
CMYK	cmyk(69.3%, 49.7%, 0%, 29.8%)
CIE-LAB	lab(40.21, 17.72, -51.10)
CIE-LCH	lch(40.21, 54.08, 289.13°)
OKLab	oklab(49.08% -0.0122 -0.1466)
OKLCH	oklch(49.08% 0.147 265.2)
XYZ	xyz(13.3655, 11.3779, 44.1309)
Luminance	0.1138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375AB3 #B39037

analogous

#3798B3 #375AB3 #5237B3

triadic

#375AB3 #B3375A #5AB337

tetradic

#375AB3 #B33798 #B39037 #37B352

square

#375AB3 #B33798 #B39037 #37B352

split-complementary

#375AB3 #B35237 #98B337

monochromatic

#1A2B55 #294284 #375AB3 #5B7BCD #8AA0DB

Accessibility & contrast

On white

6.41

#375AB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#375AB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375AB3

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375AB3	#FFFFFF	#000000	##FFFFFF
##375AB3	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2865B6

Deuteranopia (green-blind)

#0059B1

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #375ab3;
/* rgb */ color: rgb(55, 90, 179);
/* oklch */ color: oklch(49.1% 0.147 265.2);

Tailwind

colors: {
  custom: {
    50: '#7c88ca',
    500: '#375ab3',
    950: '#000000',
  },
}

SCSS

$custom: #375ab3;
$custom-light: #7c88ca;
$custom-dark: #000000;

JSON

{
  "hex": "#375ab3",
  "rgb": {
    "r": 55,
    "g": 90,
    "b": 179
  },
  "hsl": {
    "h": 223.065,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.49081,
    "c": 0.14711,
    "h": 265.2
  },
  "luminance": 0.11379
}

Semantic roles & 50–950 ramp

primary

#375AB3

secondary

#C5B281

accent

#B34BDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #375AB3

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

Preview Lab → · Contrast checker → · Palette generator →