#51599A#51599A

#51599A is a mid, moderate blue. Relative luminance 0.112; OKLCH L 48.8% C 0.104 H 276.5°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#51599A
RGB	rgb(81, 89, 154)
HSL	hsl(233, 31%, 46%)
HSV	hsv(233, 47%, 60%)
CMYK	cmyk(47.4%, 42.2%, 0%, 39.6%)
CIE-LAB	lab(39.96, 15.06, -36.57)
CIE-LCH	lch(39.96, 39.55, 292.38°)
OKLab	oklab(48.81% 0.0118 -0.1034)
OKLCH	oklch(48.81% 0.104 276.5)
XYZ	xyz(12.7967, 11.2265, 32.0582)
Luminance	0.1123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51599A #9A9251

analogous

#517D9A #51599A #6D519A

triadic

#51599A #9A5159 #599A51

tetradic

#51599A #9A517D #9A9251 #519A6D

square

#51599A #9A517D #9A9251 #519A6D

split-complementary

#51599A #9A6D51 #7D9A51

monochromatic

#272B4A #3C4272 #51599A #737AB5 #9BA0CA

Accessibility & contrast

On white

6.47

#51599A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#51599A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #51599A

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51599A	#FFFFFF	#000000	##FFFFFF
##51599A	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#40619D

Deuteranopia (green-blind)

#3A5B99

Tritanopia (blue-blind)

#376672

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #51599a;
/* rgb */ color: rgb(81, 89, 154);
/* oklch */ color: oklch(48.8% 0.104 276.5);

Tailwind

colors: {
  custom: {
    50: '#8687b8',
    500: '#51599a',
    950: '#000000',
  },
}

SCSS

$custom: #51599a;
$custom-light: #8687b8;
$custom-dark: #000000;

JSON

{
  "hex": "#51599a",
  "rgb": {
    "r": 81,
    "g": 89,
    "b": 154
  },
  "hsl": {
    "h": 233.425,
    "s": 31.064,
    "l": 46.078
  },
  "oklch": {
    "l": 0.48808,
    "c": 0.10407,
    "h": 276.5
  },
  "luminance": 0.11227
}

Semantic roles & 50–950 ramp

primary

#51599A

secondary

#B7B38F

accent

#BC61C7

background

#F8F8FB

surface

#F0EFF6

border

#CBCAD0

text

#0B0B11

muted

#7C7C80

Preview Lab

Preview with #51599A

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

Preview Lab → · Contrast checker → · Palette generator →