#375AA4#375AA4

#375AA4 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.0% C 0.126 H 263.4°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#375AA4
RGB	rgb(55, 90, 164)
HSL	hsl(221, 50%, 43%)
HSV	hsv(221, 66%, 64%)
CMYK	cmyk(66.5%, 45.1%, 0%, 35.7%)
CIE-LAB	lab(39.25, 12.21, -43.77)
CIE-LCH	lch(39.25, 45.44, 285.58°)
OKLab	oklab(48.04% -0.0145 -0.125)
OKLCH	oklch(48.04% 0.126 263.4)
XYZ	xyz(11.9302, 10.8038, 36.5714)
Luminance	0.1080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375AA4 #A48137

analogous

#3790A4 #375AA4 #4A37A4

triadic

#375AA4 #A4375A #5AA437

tetradic

#375AA4 #A43790 #A48137 #37A44A

square

#375AA4 #A43790 #A48137 #37A44A

split-complementary

#375AA4 #A44A37 #90A437

monochromatic

#182848 #284176 #375AA4 #5378C5 #819CD5

Accessibility & contrast

On white

6.64

#375AA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#375AA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375AA4

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375AA4	#FFFFFF	#000000	##FFFFFF
##375AA4	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3662A7

Deuteranopia (green-blind)

#2458A2

Tritanopia (blue-blind)

#006B77

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #375aa4;
/* rgb */ color: rgb(55, 90, 164);
/* oklch */ color: oklch(48.0% 0.126 263.4);

Tailwind

colors: {
  custom: {
    50: '#7a88bf',
    500: '#375aa4',
    950: '#000000',
  },
}

SCSS

$custom: #375aa4;
$custom-light: #7a88bf;
$custom-dark: #000000;

JSON

{
  "hex": "#375aa4",
  "rgb": {
    "r": 55,
    "g": 90,
    "b": 164
  },
  "hsl": {
    "h": 220.734,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48036,
    "c": 0.12589,
    "h": 263.4
  },
  "luminance": 0.10805
}

Semantic roles & 50–950 ramp

primary

#375AA4

secondary

#BEA879

accent

#AD4FD9

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #375AA4

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

Preview Lab → · Contrast checker → · Palette generator →