#375AA3#375AA3

#375AA3 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.0% C 0.124 H 263.2°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#375AA3
RGB	rgb(55, 90, 163)
HSL	hsl(221, 50%, 43%)
HSV	hsv(221, 66%, 64%)
CMYK	cmyk(66.3%, 44.8%, 0%, 36.1%)
CIE-LAB	lab(39.19, 11.84, -43.27)
CIE-LCH	lch(39.19, 44.86, 285.30°)
OKLab	oklab(47.97% -0.0147 -0.1236)
OKLCH	oklch(47.97% 0.124 263.2)
XYZ	xyz(11.8403, 10.7678, 36.0976)
Luminance	0.1077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375AA3 #A38037

analogous

#3790A3 #375AA3 #4A37A3

triadic

#375AA3 #A3375A #5AA337

tetradic

#375AA3 #A33790 #A38037 #37A34A

square

#375AA3 #A33790 #A38037 #37A34A

split-complementary

#375AA3 #A34A37 #90A337

monochromatic

#182747 #284175 #375AA3 #5277C5 #809BD4

Accessibility & contrast

On white

6.66

#375AA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#375AA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375AA3

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375AA3	#FFFFFF	#000000	##FFFFFF
##375AA3	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3762A6

Deuteranopia (green-blind)

#2558A1

Tritanopia (blue-blind)

#006B76

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #375aa3;
/* rgb */ color: rgb(55, 90, 163);
/* oklch */ color: oklch(48.0% 0.124 263.2);

Tailwind

colors: {
  custom: {
    50: '#7988bf',
    500: '#375aa3',
    950: '#000000',
  },
}

SCSS

$custom: #375aa3;
$custom-light: #7988bf;
$custom-dark: #000000;

JSON

{
  "hex": "#375aa3",
  "rgb": {
    "r": 55,
    "g": 90,
    "b": 163
  },
  "hsl": {
    "h": 220.556,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.47969,
    "c": 0.12446,
    "h": 263.2
  },
  "luminance": 0.10769
}

Semantic roles & 50–950 ramp

primary

#375AA3

secondary

#BEA778

accent

#AC4FD9

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #375AA3

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

Preview Lab → · Contrast checker → · Palette generator →