#5173DA#5173DA

#5173DA is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.3% C 0.162 H 267.5°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#5173DA
RGB	rgb(81, 115, 218)
HSL	hsl(225, 65%, 59%)
HSV	hsv(225, 63%, 85%)
CMYK	cmyk(62.8%, 47.2%, 0%, 14.5%)
CIE-LAB	lab(50.77, 20.00, -56.52)
CIE-LCH	lch(50.77, 59.96, 289.49°)
OKLab	oklab(58.28% -0.0071 -0.1617)
OKLCH	oklch(58.28% 0.162 267.5)
XYZ	xyz(22.1746, 19.0708, 68.8285)
Luminance	0.1907 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5173DA #DAB851

analogous

#51B8DA #5173DA #7351DA

triadic

#5173DA #DA5173 #73DA51

tetradic

#5173DA #DA51B8 #DAB851 #51DA73

square

#5173DA #DA51B8 #DAB851 #51DA73

split-complementary

#5173DA #DA7351 #B8DA51

monochromatic

#1F3B92 #2A50C4 #5173DA #839CE5 #B6C4EF

Accessibility & contrast

On white

4.36

#5173DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#5173DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5173DA

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5173DA	#FFFFFF	#000000	##000000
##5173DA	1.00	4.36	4.81	4.81
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F7FDE

Deuteranopia (green-blind)

#2473D8

Tritanopia (blue-blind)

#008B9C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #5173da;
/* rgb */ color: rgb(81, 115, 218);
/* oklch */ color: oklch(58.3% 0.162 267.5);

Tailwind

colors: {
  custom: {
    50: '#8e9ae6',
    500: '#5173da',
    950: '#000000',
  },
}

SCSS

$custom: #5173da;
$custom-light: #8e9ae6;
$custom-dark: #000000;

JSON

{
  "hex": "#5173da",
  "rgb": {
    "r": 81,
    "g": 115,
    "b": 218
  },
  "hsl": {
    "h": 225.109,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.58278,
    "c": 0.16185,
    "h": 267.5
  },
  "luminance": 0.19073
}

Semantic roles & 50–950 ramp

primary

#5173DA

secondary

#DED1A8

accent

#BE40E8

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #5173DA

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

Preview Lab → · Contrast checker → · Palette generator →