#5B78BF#5B78BF

#5B78BF is a mid, moderate blue. Relative luminance 0.194; OKLCH L 58.2% C 0.115 H 266.1°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#5B78BF
RGB	rgb(91, 120, 191)
HSL	hsl(223, 44%, 55%)
HSV	hsv(223, 52%, 75%)
CMYK	cmyk(52.4%, 37.2%, 0%, 25.1%)
CIE-LAB	lab(51.17, 9.99, -40.47)
CIE-LCH	lch(51.17, 41.68, 283.86°)
OKLab	oklab(58.24% -0.0078 -0.1144)
OKLCH	oklch(58.24% 0.115 266.1)
XYZ	xyz(20.4317, 19.4172, 51.9514)
Luminance	0.1942 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B78BF #BFA25B

analogous

#5BAABF #5B78BF #705BBF

triadic

#5B78BF #BF5B78 #78BF5B

tetradic

#5B78BF #BF5BAA #BFA25B #5BBF70

square

#5B78BF #BF5BAA #BFA25B #5BBF70

split-complementary

#5B78BF #BF705B #AABF5B

monochromatic

#2D4173 #3E5A9F #5B78BF #879CD0 #B3C0E1

Accessibility & contrast

On white

4.30

#5B78BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#5B78BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B78BF

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B78BF	#FFFFFF	#000000	##000000
##5B78BF	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7FC2

Deuteranopia (green-blind)

#5176BD

Tritanopia (blue-blind)

#2B8792

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #5b78bf;
/* rgb */ color: rgb(91, 120, 191);
/* oklch */ color: oklch(58.2% 0.115 266.1);

Tailwind

colors: {
  custom: {
    50: '#909ed2',
    500: '#5b78bf',
    950: '#000000',
  },
}

SCSS

$custom: #5b78bf;
$custom-light: #909ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#5b78bf",
  "rgb": {
    "r": 91,
    "g": 120,
    "b": 191
  },
  "hsl": {
    "h": 222.6,
    "s": 43.86,
    "l": 55.294
  },
  "oklch": {
    "l": 0.58244,
    "c": 0.11463,
    "h": 266.1
  },
  "luminance": 0.19419
}

Semantic roles & 50–950 ramp

primary

#5B78BF

secondary

#D0C4A6

accent

#AF54D4

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0E14

muted

#7E7E82

Preview Lab

Preview with #5B78BF

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

Preview Lab → · Contrast checker → · Palette generator →