#517BBD#517BBD

#517BBD is a mid, moderate blue. Relative luminance 0.196; OKLCH L 58.2% C 0.112 H 259.1°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#517BBD
RGB	rgb(81, 123, 189)
HSL	hsl(217, 45%, 53%)
HSV	hsv(217, 57%, 74%)
CMYK	cmyk(57.1%, 34.9%, 0%, 25.9%)
CIE-LAB	lab(51.37, 5.31, -39.05)
CIE-LCH	lch(51.37, 39.41, 277.75°)
OKLab	oklab(58.22% -0.0212 -0.1104)
OKLCH	oklch(58.22% 0.112 259.1)
XYZ	xyz(19.6584, 19.5878, 50.8791)
Luminance	0.1959 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517BBD #BD9351

analogous

#51B1BD #517BBD #5D51BD

triadic

#517BBD #BD517B #7BBD51

tetradic

#517BBD #BD51B1 #BD9351 #51BD5D

square

#517BBD #BD51B1 #BD9351 #51BD5D

split-complementary

#517BBD #BD5D51 #B1BD51

monochromatic

#29426B #395E97 #517BBD #7D9DCE #AABEDF

Accessibility & contrast

On white

4.27

#517BBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#517BBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517BBD

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517BBD	#FFFFFF	#000000	##000000
##517BBD	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6080C0

Deuteranopia (green-blind)

#5276BC

Tritanopia (blue-blind)

#008A93

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #517bbd;
/* rgb */ color: rgb(81, 123, 189);
/* oklch */ color: oklch(58.2% 0.112 259.1);

Tailwind

colors: {
  custom: {
    50: '#8aa0d1',
    500: '#517bbd',
    950: '#000000',
  },
}

SCSS

$custom: #517bbd;
$custom-light: #8aa0d1;
$custom-dark: #000000;

JSON

{
  "hex": "#517bbd",
  "rgb": {
    "r": 81,
    "g": 123,
    "b": 189
  },
  "hsl": {
    "h": 216.667,
    "s": 45,
    "l": 52.941
  },
  "oklch": {
    "l": 0.58218,
    "c": 0.1124,
    "h": 259.1
  },
  "luminance": 0.19589
}

Semantic roles & 50–950 ramp

primary

#517BBD

secondary

#CCBA9E

accent

#A253D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #517BBD

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

Preview Lab → · Contrast checker → · Palette generator →