#5B91CC#5B91CC

#5B91CC is a light, moderate cyan. Relative luminance 0.268; OKLCH L 64.4% C 0.106 H 251.7°. Best body text is #000000 at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#5B91CC
RGB	rgb(91, 145, 204)
HSL	hsl(211, 53%, 58%)
HSV	hsv(211, 55%, 80%)
CMYK	cmyk(55.4%, 28.9%, 0%, 20%)
CIE-LAB	lab(58.82, -0.71, -35.84)
CIE-LCH	lch(58.82, 35.85, 268.86°)
OKLab	oklab(64.41% -0.0332 -0.1008)
OKLCH	oklch(64.41% 0.106 251.7)
XYZ	xyz(25.3350, 26.8325, 60.9591)
Luminance	0.2683 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B91CC #CC965B

analogous

#5BCACC #5B91CC #5D5BCC

triadic

#5B91CC #CC5B91 #91CC5B

tetradic

#5B91CC #CC5BCA #CC965B #5BCC5D

square

#5B91CC #CC5BCA #CC965B #5BCC5D

split-complementary

#5B91CC #CC5D5B #CACC5B

monochromatic

#295484 #3772B2 #5B91CC #8AB0DB #B8D0E9

Accessibility & contrast

On white

3.30

#5B91CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.37

#5B91CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B91CC

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B91CC	#FFFFFF	#000000	##000000
##5B91CC	1.00	3.30	6.37	6.37
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.37	21.00	1.00	1.00
##000000	6.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7994CF

Deuteranopia (green-blind)

#6A89CB

Tritanopia (blue-blind)

#059FA6

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #5b91cc;
/* rgb */ color: rgb(91, 145, 204);
/* oklch */ color: oklch(64.4% 0.106 251.7);

Tailwind

colors: {
  custom: {
    50: '#91b1dc',
    500: '#5b91cc',
    950: '#000000',
  },
}

SCSS

$custom: #5b91cc;
$custom-light: #91b1dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5b91cc",
  "rgb": {
    "r": 91,
    "g": 145,
    "b": 204
  },
  "hsl": {
    "h": 211.327,
    "s": 52.558,
    "l": 57.843
  },
  "oklch": {
    "l": 0.64408,
    "c": 0.10609,
    "h": 251.7
  },
  "luminance": 0.26835
}

Semantic roles & 50–950 ramp

primary

#5B91CC

secondary

#D8C2AB

accent

#974CDC

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #5B91CC

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

Preview Lab → · Contrast checker → · Palette generator →