#51538E#51538E

#51538E is a mid, moderate blue. Relative luminance 0.099; OKLCH L 46.8% C 0.095 H 280.6°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#51538E
RGB	rgb(81, 83, 142)
HSL	hsl(238, 27%, 44%)
HSV	hsv(238, 43%, 56%)
CMYK	cmyk(43%, 41.5%, 0%, 44.3%)
CIE-LAB	lab(37.64, 15.13, -33.00)
CIE-LCH	lch(37.64, 36.31, 294.63°)
OKLab	oklab(46.82% 0.0174 -0.093)
OKLCH	oklch(46.82% 0.095 280.6)
XYZ	xyz(11.3676, 9.8883, 26.8956)
Luminance	0.0989 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51538E #8E8C51

analogous

#51718E #51538E #6D518E

triadic

#51538E #8E5153 #538E51

tetradic

#51538E #8E5171 #8E8C51 #518E6D

square

#51538E #8E5171 #8E8C51 #518E6D

split-complementary

#51538E #8E6D51 #718E51

monochromatic

#252540 #3B3C67 #51538E #6F71AD #9698C3

Accessibility & contrast

On white

7.05

#51538E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#51538E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51538E

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51538E	#FFFFFF	#000000	##FFFFFF
##51538E	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E5B90

Deuteranopia (green-blind)

#3A568D

Tritanopia (blue-blind)

#3E5F69

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #51538e;
/* rgb */ color: rgb(81, 83, 142);
/* oklch */ color: oklch(46.8% 0.095 280.6);

Tailwind

colors: {
  custom: {
    50: '#8583af',
    500: '#51538e',
    950: '#000000',
  },
}

SCSS

$custom: #51538e;
$custom-light: #8583af;
$custom-dark: #000000;

JSON

{
  "hex": "#51538e",
  "rgb": {
    "r": 81,
    "g": 83,
    "b": 142
  },
  "hsl": {
    "h": 238.033,
    "s": 27.354,
    "l": 43.725
  },
  "oklch": {
    "l": 0.46822,
    "c": 0.09464,
    "h": 280.6
  },
  "luminance": 0.09889
}

Semantic roles & 50–950 ramp

primary

#51538E

secondary

#B0AF8B

accent

#C164C4

background

#F8F8FA

surface

#EFEFF4

border

#CACACE

text

#0B0A10

muted

#7C7C7F

Preview Lab

Preview with #51538E

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

Preview Lab → · Contrast checker → · Palette generator →