#51559D#51559D

#51559D is a mid, moderate blue. Relative luminance 0.107; OKLCH L 48.2% C 0.114 H 278.8°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#51559D
RGB	rgb(81, 85, 157)
HSL	hsl(237, 32%, 47%)
HSV	hsv(237, 48%, 62%)
CMYK	cmyk(48.4%, 45.9%, 0%, 38.4%)
CIE-LAB	lab(39.04, 18.57, -39.84)
CIE-LCH	lch(39.04, 43.95, 294.99°)
OKLab	oklab(48.16% 0.0175 -0.113)
OKLCH	oklch(48.16% 0.114 278.8)
XYZ	xyz(12.7258, 10.6800, 33.2826)
Luminance	0.1068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51559D #9D9951

analogous

#517B9D #51559D #73519D

triadic

#51559D #9D5155 #559D51

tetradic

#51559D #9D517B #9D9951 #519D73

square

#51559D #9D517B #9D9951 #519D73

split-complementary

#51559D #9D7351 #7B9D51

monochromatic

#27294C #3C3F75 #51559D #7477B7 #9C9FCC

Accessibility & contrast

On white

6.70

#51559D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#51559D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51559D

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51559D	#FFFFFF	#000000	##FFFFFF
##51559D	1.00	6.70	3.14	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385FA0

Deuteranopia (green-blind)

#32599B

Tritanopia (blue-blind)

#356471

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #51559d;
/* rgb */ color: rgb(81, 85, 157);
/* oklch */ color: oklch(48.2% 0.114 278.8);

Tailwind

colors: {
  custom: {
    50: '#8784ba',
    500: '#51559d',
    950: '#000000',
  },
}

SCSS

$custom: #51559d;
$custom-light: #8784ba;
$custom-dark: #000000;

JSON

{
  "hex": "#51559d",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 157
  },
  "hsl": {
    "h": 236.842,
    "s": 31.933,
    "l": 46.667
  },
  "oklch": {
    "l": 0.4816,
    "c": 0.11432,
    "h": 278.8
  },
  "luminance": 0.10681
}

Semantic roles & 50–950 ramp

primary

#51559D

secondary

#B9B791

accent

#C360C8

background

#F8F8FB

surface

#F0EFF6

border

#CBCAD0

text

#0C0B12

muted

#7D7C81

Preview Lab

Preview with #51559D

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

Preview Lab → · Contrast checker → · Palette generator →