#517ABB#517ABB

#517ABB is a mid, moderate blue. Relative luminance 0.193; OKLCH L 57.9% C 0.111 H 259.3°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#517ABB
RGB	rgb(81, 122, 187)
HSL	hsl(217, 44%, 53%)
HSV	hsv(217, 57%, 73%)
CMYK	cmyk(56.7%, 34.8%, 0%, 26.7%)
CIE-LAB	lab(50.98, 5.26, -38.50)
CIE-LCH	lch(50.98, 38.86, 277.78°)
OKLab	oklab(57.89% -0.0206 -0.1088)
OKLCH	oklch(57.89% 0.111 259.3)
XYZ	xyz(19.3194, 19.2547, 49.7025)
Luminance	0.1926 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517ABB #BB9251

analogous

#51AFBB #517ABB #5D51BB

triadic

#517ABB #BB517A #7ABB51

tetradic

#517ABB #BB51AF #BB9251 #51BB5D

square

#517ABB #BB51AF #BB9251 #51BB5D

split-complementary

#517ABB #BB5D51 #AFBB51

monochromatic

#294269 #3A5D95 #517ABB #7D9CCC #A9BDDD

Accessibility & contrast

On white

4.33

#517ABB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#517ABB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517ABB

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517ABB	#FFFFFF	#000000	##000000
##517ABB	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7FBE

Deuteranopia (green-blind)

#5275BA

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #517abb;
/* rgb */ color: rgb(81, 122, 187);
/* oklch */ color: oklch(57.9% 0.111 259.3);

Tailwind

colors: {
  custom: {
    50: '#8aa0d0',
    500: '#517abb',
    950: '#000000',
  },
}

SCSS

$custom: #517abb;
$custom-light: #8aa0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#517abb",
  "rgb": {
    "r": 81,
    "g": 122,
    "b": 187
  },
  "hsl": {
    "h": 216.792,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.57886,
    "c": 0.11073,
    "h": 259.3
  },
  "luminance": 0.19256
}

Semantic roles & 50–950 ramp

primary

#517ABB

secondary

#CBB99D

accent

#A254D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #517ABB

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

Preview Lab → · Contrast checker → · Palette generator →