#517BB1#517BB1

#517BB1 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.6% C 0.096 H 255.2°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#517BB1
RGB	rgb(81, 123, 177)
HSL	hsl(214, 38%, 51%)
HSV	hsv(214, 54%, 69%)
CMYK	cmyk(54.2%, 30.5%, 0%, 30.6%)
CIE-LAB	lab(50.79, 1.40, -33.04)
CIE-LCH	lch(50.79, 33.07, 272.43°)
OKLab	oklab(57.58% -0.0245 -0.0929)
OKLCH	oklch(57.58% 0.096 255.2)
XYZ	xyz(18.4094, 19.0881, 44.3007)
Luminance	0.1909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517BB1 #B18751

analogous

#51ABB1 #517BB1 #5751B1

triadic

#517BB1 #B1517B #7BB151

tetradic

#517BB1 #B151AB #B18751 #51B157

square

#517BB1 #B151AB #B18751 #51B157

split-complementary

#517BB1 #B15751 #ABB151

monochromatic

#2A415E #3D5E88 #517BB1 #7B9BC4 #A6BBD7

Accessibility & contrast

On white

4.36

#517BB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#517BB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517BB1

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517BB1	#FFFFFF	#000000	##000000
##517BB1	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657EB3

Deuteranopia (green-blind)

#5975B0

Tritanopia (blue-blind)

#19878E

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #517bb1;
/* rgb */ color: rgb(81, 123, 177);
/* oklch */ color: oklch(57.6% 0.096 255.2);

Tailwind

colors: {
  custom: {
    50: '#88a0c8',
    500: '#517bb1',
    950: '#000000',
  },
}

SCSS

$custom: #517bb1;
$custom-light: #88a0c8;
$custom-dark: #000000;

JSON

{
  "hex": "#517bb1",
  "rgb": {
    "r": 81,
    "g": 123,
    "b": 177
  },
  "hsl": {
    "h": 213.75,
    "s": 38.095,
    "l": 50.588
  },
  "oklch": {
    "l": 0.57577,
    "c": 0.09611,
    "h": 255.2
  },
  "luminance": 0.1909
}

Semantic roles & 50–950 ramp

primary

#517BB1

secondary

#C4B29A

accent

#9B5ACE

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #517BB1

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

Preview Lab → · Contrast checker → · Palette generator →