#5158DD#5158DD

#5158DD is a mid, vivid blue. Relative luminance 0.139; OKLCH L 53.4% C 0.199 H 275.1°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#5158DD
RGB	rgb(81, 88, 221)
HSL	hsl(237, 67%, 59%)
HSV	hsv(237, 63%, 87%)
CMYK	cmyk(63.3%, 60.2%, 0%, 13.3%)
CIE-LAB	lab(44.16, 37.75, -68.92)
CIE-LCH	lch(44.16, 78.58, 298.71°)
OKLab	oklab(53.38% 0.0176 -0.1985)
OKLCH	oklch(53.38% 0.199 275.1)
XYZ	xyz(19.9299, 13.9476, 70.0345)
Luminance	0.1395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5158DD #DDD651

analogous

#519EDD #5158DD #9051DD

triadic

#5158DD #DD5158 #58DD51

tetradic

#5158DD #DD519E #DDD651 #51DD90

square

#5158DD #DD519E #DDD651 #51DD90

split-complementary

#5158DD #DD9051 #9EDD51

monochromatic

#1D2396 #272FC9 #5158DD #8489E7 #B7BAF1

Accessibility & contrast

On white

5.54

#5158DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#5158DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5158DD

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5158DD	#FFFFFF	#000000	##FFFFFF
##5158DD	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FE1

Deuteranopia (green-blind)

#0062DA

Tritanopia (blue-blind)

#007992

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #5158dd;
/* rgb */ color: rgb(81, 88, 221);
/* oklch */ color: oklch(53.4% 0.199 275.1);

Tailwind

colors: {
  custom: {
    50: '#9087e9',
    500: '#5158dd',
    950: '#000000',
  },
}

SCSS

$custom: #5158dd;
$custom-light: #9087e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5158dd",
  "rgb": {
    "r": 81,
    "g": 88,
    "b": 221
  },
  "hsl": {
    "h": 237,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.53378,
    "c": 0.19924,
    "h": 275.1
  },
  "luminance": 0.13949
}

Semantic roles & 50–950 ramp

primary

#5158DD

secondary

#E0DEAA

accent

#E23EEA

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #5158DD

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

Preview Lab → · Contrast checker → · Palette generator →