#516BB5#516BB5

#516BB5 is a mid, moderate blue. Relative luminance 0.156; OKLCH L 54.3% C 0.120 H 267.7°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#516BB5
RGB	rgb(81, 107, 181)
HSL	hsl(224, 40%, 51%)
HSV	hsv(224, 55%, 71%)
CMYK	cmyk(55.2%, 40.9%, 0%, 29%)
CIE-LAB	lab(46.44, 12.49, -42.21)
CIE-LCH	lch(46.44, 44.02, 286.48°)
OKLab	oklab(54.27% -0.0048 -0.1198)
OKLCH	oklch(54.27% 0.12 267.7)
XYZ	xyz(16.9887, 15.5997, 45.8229)
Luminance	0.1560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516BB5 #B59B51

analogous

#519DB5 #516BB5 #6951B5

triadic

#516BB5 #B5516B #6BB551

tetradic

#516BB5 #B5519D #B59B51 #51B569

square

#516BB5 #B5519D #B59B51 #51B569

split-complementary

#516BB5 #B56951 #9DB551

monochromatic

#2A3862 #3C518D #516BB5 #7C90C7 #A7B4DA

Accessibility & contrast

On white

5.10

#516BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#516BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #516BB5

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516BB5	#FFFFFF	#000000	##FFFFFF
##516BB5	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C73B8

Deuteranopia (green-blind)

#406AB3

Tritanopia (blue-blind)

#187B87

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #516bb5;
/* rgb */ color: rgb(81, 107, 181);
/* oklch */ color: oklch(54.3% 0.120 267.7);

Tailwind

colors: {
  custom: {
    50: '#8995cb',
    500: '#516bb5',
    950: '#000000',
  },
}

SCSS

$custom: #516bb5;
$custom-light: #8995cb;
$custom-dark: #000000;

JSON

{
  "hex": "#516bb5",
  "rgb": {
    "r": 81,
    "g": 107,
    "b": 181
  },
  "hsl": {
    "h": 224.4,
    "s": 40.323,
    "l": 51.373
  },
  "oklch": {
    "l": 0.54269,
    "c": 0.11987,
    "h": 267.7
  },
  "luminance": 0.15601
}

Semantic roles & 50–950 ramp

primary

#516BB5

secondary

#C7BB9B

accent

#B158D0

background

#F8F9FC

surface

#F0F1F8

border

#CBCBD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #516BB5

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

Preview Lab → · Contrast checker → · Palette generator →