#375EA4#375EA4

#375EA4 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 48.9% C 0.121 H 261.2°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#375EA4
RGB	rgb(55, 94, 164)
HSL	hsl(219, 50%, 43%)
HSV	hsv(219, 66%, 64%)
CMYK	cmyk(66.5%, 42.7%, 0%, 35.7%)
CIE-LAB	lab(40.40, 9.62, -41.92)
CIE-LCH	lch(40.40, 43.01, 282.93°)
OKLab	oklab(48.93% -0.0186 -0.1196)
OKLCH	oklch(48.93% 0.121 261.2)
XYZ	xyz(12.2767, 11.4968, 36.6869)
Luminance	0.1150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375EA4 #A47D37

analogous

#3794A4 #375EA4 #4637A4

triadic

#375EA4 #A4375E #5EA437

tetradic

#375EA4 #A43794 #A47D37 #37A446

square

#375EA4 #A43794 #A47D37 #37A446

split-complementary

#375EA4 #A44637 #94A437

monochromatic

#182948 #284476 #375EA4 #537CC5 #819FD5

Accessibility & contrast

On white

6.36

#375EA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#375EA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375EA4

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375EA4	#FFFFFF	#000000	##FFFFFF
##375EA4	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E65A7

Deuteranopia (green-blind)

#2D5BA3

Tritanopia (blue-blind)

#006E79

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #375ea4;
/* rgb */ color: rgb(55, 94, 164);
/* oklch */ color: oklch(48.9% 0.121 261.2);

Tailwind

colors: {
  custom: {
    50: '#798bbf',
    500: '#375ea4',
    950: '#000000',
  },
}

SCSS

$custom: #375ea4;
$custom-light: #798bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#375ea4",
  "rgb": {
    "r": 55,
    "g": 94,
    "b": 164
  },
  "hsl": {
    "h": 218.532,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48928,
    "c": 0.121,
    "h": 261.2
  },
  "luminance": 0.11498
}

Semantic roles & 50–950 ramp

primary

#375EA4

secondary

#BEA579

accent

#A84FD9

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #375EA4

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

Preview Lab → · Contrast checker → · Palette generator →