#5B78CC#5B78CC

#5B78CC is a mid, vivid blue. Relative luminance 0.200; OKLCH L 59.0% C 0.133 H 267.8°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#5B78CC
RGB	rgb(91, 120, 204)
HSL	hsl(225, 53%, 58%)
HSV	hsv(225, 55%, 80%)
CMYK	cmyk(55.4%, 41.2%, 0%, 20%)
CIE-LAB	lab(51.85, 14.18, -46.82)
CIE-LCH	lch(51.85, 48.92, 286.85°)
OKLab	oklab(58.99% -0.005 -0.1329)
OKLCH	oklch(58.99% 0.133 267.8)
XYZ	xyz(21.9263, 20.0151, 59.8229)
Luminance	0.2002 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B78CC #CCAF5B

analogous

#5BB0CC #5B78CC #775BCC

triadic

#5B78CC #CC5B78 #78CC5B

tetradic

#5B78CC #CC5BB0 #CCAF5B #5BCC77

square

#5B78CC #CC5BB0 #CCAF5B #5BCC77

split-complementary

#5B78CC #CC775B #B0CC5B

monochromatic

#294084 #3757B2 #5B78CC #8A9EDB #B8C5E9

Accessibility & contrast

On white

4.20

#5B78CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#5B78CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B78CC

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B78CC	#FFFFFF	#000000	##000000
##5B78CC	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5581CF

Deuteranopia (green-blind)

#4777CA

Tritanopia (blue-blind)

#188A98

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #5b78cc;
/* rgb */ color: rgb(91, 120, 204);
/* oklch */ color: oklch(59.0% 0.133 267.8);

Tailwind

colors: {
  custom: {
    50: '#919edc',
    500: '#5b78cc',
    950: '#000000',
  },
}

SCSS

$custom: #5b78cc;
$custom-light: #919edc;
$custom-dark: #000000;

JSON

{
  "hex": "#5b78cc",
  "rgb": {
    "r": 91,
    "g": 120,
    "b": 204
  },
  "hsl": {
    "h": 224.602,
    "s": 52.558,
    "l": 57.843
  },
  "oklch": {
    "l": 0.58993,
    "c": 0.13302,
    "h": 267.8
  },
  "luminance": 0.20017
}

Semantic roles & 50–950 ramp

primary

#5B78CC

secondary

#D8CCAB

accent

#B74CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5B78CC

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

Preview Lab → · Contrast checker → · Palette generator →