#5B83BC#5B83BC

#5B83BC is a mid, moderate blue. Relative luminance 0.221; OKLCH L 60.5% C 0.098 H 257.3°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#5B83BC
RGB	rgb(91, 131, 188)
HSL	hsl(215, 42%, 55%)
HSV	hsv(215, 52%, 74%)
CMYK	cmyk(51.6%, 30.3%, 0%, 26.3%)
CIE-LAB	lab(54.12, 2.44, -34.12)
CIE-LCH	lch(54.12, 34.21, 274.09°)
OKLab	oklab(60.49% -0.0216 -0.0958)
OKLCH	oklch(60.49% 0.098 257.3)
XYZ	xyz(21.5047, 22.0860, 50.6970)
Luminance	0.2209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B83BC #BC945B

analogous

#5BB3BC #5B83BC #645BBC

triadic

#5B83BC #BC5B83 #83BC5B

tetradic

#5B83BC #BC5BB3 #BC945B #5BBC64

square

#5B83BC #BC5BB3 #BC945B #5BBC64

split-complementary

#5B83BC #BC645B #B3BC5B

monochromatic

#2D496F #3F659B #5B83BC #86A4CE #B2C5E0

Accessibility & contrast

On white

3.88

#5B83BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#5B83BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B83BC

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B83BC	#FFFFFF	#000000	##000000
##5B83BC	1.00	3.88	5.42	5.42
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D86BE

Deuteranopia (green-blind)

#617DBB

Tritanopia (blue-blind)

#2B9097

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #5b83bc;
/* rgb */ color: rgb(91, 131, 188);
/* oklch */ color: oklch(60.5% 0.098 257.3);

Tailwind

colors: {
  custom: {
    50: '#8fa6d0',
    500: '#5b83bc',
    950: '#000000',
  },
}

SCSS

$custom: #5b83bc;
$custom-light: #8fa6d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5b83bc",
  "rgb": {
    "r": 91,
    "g": 131,
    "b": 188
  },
  "hsl": {
    "h": 215.258,
    "s": 41.991,
    "l": 54.706
  },
  "oklch": {
    "l": 0.60488,
    "c": 0.09826,
    "h": 257.3
  },
  "luminance": 0.22088
}

Semantic roles & 50–950 ramp

primary

#5B83BC

secondary

#CEBDA5

accent

#9F56D2

background

#F9FAFC

surface

#F1F4F9

border

#CBCED2

text

#0D0F14

muted

#7E7F82

Preview Lab

Preview with #5B83BC

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

Preview Lab → · Contrast checker → · Palette generator →