#5B91C8#5B91C8

#5B91C8 is a light, moderate cyan. Relative luminance 0.266; OKLCH L 64.2% C 0.101 H 250.1°. Best body text is #000000 at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#5B91C8
RGB	rgb(91, 145, 200)
HSL	hsl(210, 50%, 57%)
HSV	hsv(210, 55%, 78%)
CMYK	cmyk(54.5%, 27.5%, 0%, 21.6%)
CIE-LAB	lab(58.64, -1.97, -33.86)
CIE-LCH	lch(58.64, 33.92, 266.67°)
OKLab	oklab(64.21% -0.0344 -0.095)
OKLCH	oklch(64.21% 0.101 250.1)
XYZ	xyz(24.8614, 26.6430, 58.4649)
Luminance	0.2665 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B91C8 #C8925B

analogous

#5BC8C8 #5B91C8 #5B5BC8

triadic

#5B91C8 #C85B91 #91C85B

tetradic

#5B91C8 #C85BC8 #C8925B #5BC85B

square

#5B91C8 #C85BC8 #C8925B #5BC85B

split-complementary

#5B91C8 #C85B5B #C8C85B

monochromatic

#2A547E #3A72AC #5B91C8 #89B0D7 #B7CEE7

Accessibility & contrast

On white

3.32

#5B91C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.33

#5B91C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B91C8

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B91C8	#FFFFFF	#000000	##000000
##5B91C8	1.00	3.32	6.33	6.33
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.33	21.00	1.00	1.00
##000000	6.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A93CA

Deuteranopia (green-blind)

#6C88C7

Tritanopia (blue-blind)

#139EA4

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #5b91c8;
/* rgb */ color: rgb(91, 145, 200);
/* oklch */ color: oklch(64.2% 0.101 250.1);

Tailwind

colors: {
  custom: {
    50: '#91b1d9',
    500: '#5b91c8',
    950: '#000000',
  },
}

SCSS

$custom: #5b91c8;
$custom-light: #91b1d9;
$custom-dark: #000000;

JSON

{
  "hex": "#5b91c8",
  "rgb": {
    "r": 91,
    "g": 145,
    "b": 200
  },
  "hsl": {
    "h": 210.275,
    "s": 49.772,
    "l": 57.059
  },
  "oklch": {
    "l": 0.64211,
    "c": 0.10109,
    "h": 250.1
  },
  "luminance": 0.26645
}

Semantic roles & 50–950 ramp

primary

#5B91C8

secondary

#D6C0A9

accent

#954FD9

background

#F9FAFD

surface

#F2F4FA

border

#CCCED3

text

#0D1014

muted

#7E7F83

Preview Lab

Preview with #5B91C8

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

Preview Lab → · Contrast checker → · Palette generator →