#5375CB#5375CB

#5375CB is a mid, vivid blue. Relative luminance 0.189; OKLCH L 57.8% C 0.138 H 266.0°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#5375CB
RGB	rgb(83, 117, 203)
HSL	hsl(223, 54%, 56%)
HSV	hsv(223, 59%, 80%)
CMYK	cmyk(59.1%, 42.4%, 0%, 20.4%)
CIE-LAB	lab(50.54, 14.05, -48.37)
CIE-LCH	lch(50.54, 50.37, 286.20°)
OKLab	oklab(57.84% -0.0097 -0.1377)
OKLCH	oklch(57.84% 0.138 266)
XYZ	xyz(20.7044, 18.8717, 59.0399)
Luminance	0.1887 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5375CB #CBA953

analogous

#53B1CB #5375CB #6D53CB

triadic

#5375CB #CB5375 #75CB53

tetradic

#5375CB #CB53B1 #CBA953 #53CB6D

square

#5375CB #CB53B1 #CBA953 #53CB6D

split-complementary

#5375CB #CB6D53 #B1CB53

monochromatic

#263F7E #3456AD #5375CB #829BD9 #B1C0E7

Accessibility & contrast

On white

4.40

#5375CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#5375CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5375CB

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5375CB	#FFFFFF	#000000	##000000
##5375CB	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F7ECE

Deuteranopia (green-blind)

#3E73C9

Tritanopia (blue-blind)

#008896

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5375cb;
/* rgb */ color: rgb(83, 117, 203);
/* oklch */ color: oklch(57.8% 0.138 266.0);

Tailwind

colors: {
  custom: {
    50: '#8d9cdb',
    500: '#5375cb',
    950: '#000000',
  },
}

SCSS

$custom: #5375cb;
$custom-light: #8d9cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#5375cb",
  "rgb": {
    "r": 83,
    "g": 117,
    "b": 203
  },
  "hsl": {
    "h": 223,
    "s": 53.571,
    "l": 56.078
  },
  "oklch": {
    "l": 0.57844,
    "c": 0.13801,
    "h": 266
  },
  "luminance": 0.18873
}

Semantic roles & 50–950 ramp

primary

#5375CB

secondary

#D6C8A4

accent

#B44BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5375CB

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

Preview Lab → · Contrast checker → · Palette generator →