#5B99EF#5B99EF

#5B99EF is a light, vivid cyan. Relative luminance 0.312; OKLCH L 68.0% C 0.143 H 256.9°. Best body text is #000000 at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#5B99EF
RGB	rgb(91, 153, 239)
HSL	hsl(215, 82%, 65%)
HSV	hsv(215, 62%, 94%)
CMYK	cmyk(61.9%, 36%, 0%, 6.3%)
CIE-LAB	lab(62.71, 5.96, -49.19)
CIE-LCH	lch(62.71, 49.55, 276.90°)
OKLab	oklab(67.99% -0.0324 -0.1395)
OKLCH	oklch(67.99% 0.143 256.9)
XYZ	xyz(31.2800, 31.2357, 86.0253)
Luminance	0.3124 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B99EF #EFB15B

analogous

#5BE3EF #5B99EF #675BEF

triadic

#5B99EF #EF5B99 #99EF5B

tetradic

#5B99EF #EF5BE3 #EFB15B #5BEF67

square

#5B99EF #EF5BE3 #EFB15B #5BEF67

split-complementary

#5B99EF #EF675B #E3EF5B

monochromatic

#125ABD #2376EA #5B99EF #93BCF4 #CBDEFA

Accessibility & contrast

On white

2.90

#5B99EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.25

#5B99EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B99EF

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B99EF	#FFFFFF	#000000	##000000
##5B99EF	1.00	2.90	7.25	7.25
#FFFFFF	2.90	1.00	21.00	21.00
#000000	7.25	21.00	1.00	1.00
##000000	7.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#749FF3

Deuteranopia (green-blind)

#6091ED

Tritanopia (blue-blind)

#00ADB9

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #5b99ef;
/* rgb */ color: rgb(91, 153, 239);
/* oklch */ color: oklch(68.0% 0.143 256.9);

Tailwind

colors: {
  custom: {
    50: '#96b6f4',
    500: '#5b99ef',
    950: '#000000',
  },
}

SCSS

$custom: #5b99ef;
$custom-light: #96b6f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5b99ef",
  "rgb": {
    "r": 91,
    "g": 153,
    "b": 239
  },
  "hsl": {
    "h": 214.865,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.67989,
    "c": 0.14326,
    "h": 256.9
  },
  "luminance": 0.31239
}

Semantic roles & 50–950 ramp

primary

#5B99EF

secondary

#ECD7BA

accent

#8407DF

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #5B99EF

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

Preview Lab → · Contrast checker → · Palette generator →