#375EA3#375EA3

#375EA3 is a mid, moderate blue. Relative luminance 0.115; OKLCH L 48.9% C 0.120 H 261.0°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#375EA3
RGB	rgb(55, 94, 163)
HSL	hsl(218, 50%, 43%)
HSV	hsv(218, 66%, 64%)
CMYK	cmyk(66.3%, 42.3%, 0%, 36.1%)
CIE-LAB	lab(40.35, 9.26, -41.42)
CIE-LCH	lch(40.35, 42.44, 282.60°)
OKLab	oklab(48.86% -0.0188 -0.1181)
OKLCH	oklch(48.86% 0.12 261)
XYZ	xyz(12.1868, 11.4608, 36.2131)
Luminance	0.1146 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375EA3 #A37C37

analogous

#3794A3 #375EA3 #4637A3

triadic

#375EA3 #A3375E #5EA337

tetradic

#375EA3 #A33794 #A37C37 #37A346

square

#375EA3 #A33794 #A37C37 #37A346

split-complementary

#375EA3 #A34637 #94A337

monochromatic

#182947 #284475 #375EA3 #527CC5 #809FD4

Accessibility & contrast

On white

6.38

#375EA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#375EA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375EA3

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375EA3	#FFFFFF	#000000	##FFFFFF
##375EA3	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E64A6

Deuteranopia (green-blind)

#2E5AA2

Tritanopia (blue-blind)

#006E78

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #375ea3;
/* rgb */ color: rgb(55, 94, 163);
/* oklch */ color: oklch(48.9% 0.120 261.0);

Tailwind

colors: {
  custom: {
    50: '#798bbf',
    500: '#375ea3',
    950: '#000000',
  },
}

SCSS

$custom: #375ea3;
$custom-light: #798bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#375ea3",
  "rgb": {
    "r": 55,
    "g": 94,
    "b": 163
  },
  "hsl": {
    "h": 218.333,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.48863,
    "c": 0.11959,
    "h": 261
  },
  "luminance": 0.11462
}

Semantic roles & 50–950 ramp

primary

#375EA3

secondary

#BEA578

accent

#A74FD9

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #375EA3

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

Preview Lab → · Contrast checker → · Palette generator →