#5B99CD#5B99CD

#5B99CD is a light, moderate cyan. Relative luminance 0.294; OKLCH L 66.3% C 0.101 H 245.4°. Best body text is #000000 at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#5B99CD
RGB	rgb(91, 153, 205)
HSL	hsl(207, 53%, 58%)
HSV	hsv(207, 56%, 80%)
CMYK	cmyk(55.6%, 25.4%, 0%, 19.6%)
CIE-LAB	lab(61.14, -4.97, -32.78)
CIE-LCH	lch(61.14, 33.15, 261.38°)
OKLab	oklab(66.25% -0.042 -0.0919)
OKLCH	oklch(66.25% 0.101 245.4)
XYZ	xyz(26.7211, 29.4121, 62.0147)
Luminance	0.2941 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B99CD #CD8F5B

analogous

#5BCDC8 #5B99CD #5B60CD

triadic

#5B99CD #CD5B99 #99CD5B

tetradic

#5B99CD #C85BCD #CD8F5B #60CD5B

square

#5B99CD #C85BCD #CD8F5B #60CD5B

split-complementary

#5B99CD #CD5B60 #CDC85B

monochromatic

#295B85 #377BB4 #5B99CD #8AB6DB #B9D3EA

Accessibility & contrast

On white

3.05

#5B99CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.88

#5B99CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B99CD

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B99CD	#FFFFFF	#000000	##000000
##5B99CD	1.00	3.05	6.88	6.88
#FFFFFF	3.05	1.00	21.00	21.00
#000000	6.88	21.00	1.00	1.00
##000000	6.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#839ACF

Deuteranopia (green-blind)

#748ECC

Tritanopia (blue-blind)

#00A5AB

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #5b99cd;
/* rgb */ color: rgb(91, 153, 205);
/* oklch */ color: oklch(66.3% 0.101 245.4);

Tailwind

colors: {
  custom: {
    50: '#91b6dc',
    500: '#5b99cd',
    950: '#000000',
  },
}

SCSS

$custom: #5b99cd;
$custom-light: #91b6dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5b99cd",
  "rgb": {
    "r": 91,
    "g": 153,
    "b": 205
  },
  "hsl": {
    "h": 207.368,
    "s": 53.271,
    "l": 58.039
  },
  "oklch": {
    "l": 0.66252,
    "c": 0.101,
    "h": 245.4
  },
  "luminance": 0.29414
}

Semantic roles & 50–950 ramp

primary

#5B99CD

secondary

#D9C0AB

accent

#8E4BDD

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #5B99CD

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

Preview Lab → · Contrast checker → · Palette generator →