#375EA5#375EA5

#375EA5 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.0% C 0.122 H 261.4°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#375EA5
RGB	rgb(55, 94, 165)
HSL	hsl(219, 50%, 43%)
HSV	hsv(219, 67%, 65%)
CMYK	cmyk(66.7%, 43%, 0%, 35.3%)
CIE-LAB	lab(40.46, 9.99, -42.42)
CIE-LCH	lch(40.46, 43.58, 283.25°)
OKLab	oklab(48.99% -0.0184 -0.121)
OKLCH	oklch(48.99% 0.122 261.4)
XYZ	xyz(12.3674, 11.5330, 37.1644)
Luminance	0.1153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#375EA5 #A57E37

analogous

#3795A5 #375EA5 #4737A5

triadic

#375EA5 #A5375E #5EA537

tetradic

#375EA5 #A53795 #A57E37 #37A547

square

#375EA5 #A53795 #A57E37 #37A547

split-complementary

#375EA5 #A54737 #95A537

monochromatic

#182A49 #284477 #375EA5 #537CC6 #819FD5

Accessibility & contrast

On white

6.35

#375EA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#375EA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #375EA5

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##375EA5	#FFFFFF	#000000	##FFFFFF
##375EA5	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D65A8

Deuteranopia (green-blind)

#2B5BA4

Tritanopia (blue-blind)

#006E79

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #375ea5;
/* rgb */ color: rgb(55, 94, 165);
/* oklch */ color: oklch(49.0% 0.122 261.4);

Tailwind

colors: {
  custom: {
    50: '#7a8bc0',
    500: '#375ea5',
    950: '#000000',
  },
}

SCSS

$custom: #375ea5;
$custom-light: #7a8bc0;
$custom-dark: #000000;

JSON

{
  "hex": "#375ea5",
  "rgb": {
    "r": 55,
    "g": 94,
    "b": 165
  },
  "hsl": {
    "h": 218.727,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.48993,
    "c": 0.12242,
    "h": 261.4
  },
  "luminance": 0.11534
}

Semantic roles & 50–950 ramp

primary

#375EA5

secondary

#BFA679

accent

#A84EDA

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #375EA5

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

Preview Lab → · Contrast checker → · Palette generator →