#5166CA#5166CA

#5166CA is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.6% C 0.156 H 271.4°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#5166CA
RGB	rgb(81, 102, 202)
HSL	hsl(230, 53%, 55%)
HSV	hsv(230, 60%, 79%)
CMYK	cmyk(59.9%, 49.5%, 0%, 20.8%)
CIE-LAB	lab(46.33, 22.66, -54.54)
CIE-LCH	lch(46.33, 59.06, 292.57°)
OKLab	oklab(54.58% 0.0039 -0.156)
OKLCH	oklch(54.58% 0.156 271.4)
XYZ	xyz(18.8018, 15.5148, 57.8695)
Luminance	0.1552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5166CA #CAB551

analogous

#51A2CA #5166CA #7851CA

triadic

#5166CA #CA5166 #66CA51

tetradic

#5166CA #CA51A2 #CAB551 #51CA78

square

#5166CA #CA51A2 #CAB551 #51CA78

split-complementary

#5166CA #CA7851 #A2CA51

monochromatic

#25347B #3448AA #5166CA #808FD8 #AFB8E7

Accessibility & contrast

On white

5.12

#5166CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#5166CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5166CA

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5166CA	#FFFFFF	#000000	##FFFFFF
##5166CA	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3273CE

Deuteranopia (green-blind)

#1969C8

Tritanopia (blue-blind)

#007D8E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #5166ca;
/* rgb */ color: rgb(81, 102, 202);
/* oklch */ color: oklch(54.6% 0.156 271.4);

Tailwind

colors: {
  custom: {
    50: '#8c91db',
    500: '#5166ca',
    950: '#000000',
  },
}

SCSS

$custom: #5166ca;
$custom-light: #8c91db;
$custom-dark: #000000;

JSON

{
  "hex": "#5166ca",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 202
  },
  "hsl": {
    "h": 229.587,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.54583,
    "c": 0.15606,
    "h": 271.4
  },
  "luminance": 0.15516
}

Semantic roles & 50–950 ramp

primary

#5166CA

secondary

#D5CCA2

accent

#C34BDD

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #5166CA

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

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