#5999F8#5999F8

#5999F8 is a light, vivid blue. Relative luminance 0.317; OKLCH L 68.4% C 0.156 H 258.2°. Best body text is #000000 at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#5999F8
RGB	rgb(89, 153, 248)
HSL	hsl(216, 92%, 66%)
HSV	hsv(216, 64%, 97%)
CMYK	cmyk(64.1%, 38.3%, 0%, 2.7%)
CIE-LAB	lab(63.08, 8.60, -53.55)
CIE-LCH	lch(63.08, 54.24, 279.12°)
OKLab	oklab(68.4% -0.0319 -0.1523)
OKLCH	oklch(68.4% 0.156 258.2)
XYZ	xyz(32.4483, 31.6805, 93.1937)
Luminance	0.3168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5999F8 #F8B859

analogous

#59E9F8 #5999F8 #6859F8

triadic

#5999F8 #F85999 #99F859

tetradic

#5999F8 #F859E9 #F8B859 #59F868

square

#5999F8 #F859E9 #F8B859 #59F868

split-complementary

#5999F8 #F86859 #E9F859

monochromatic

#0958CE #1E75F6 #5999F8 #94BDFA #CEE1FD

Accessibility & contrast

On white

2.86

#5999F8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.34

#5999F8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5999F8

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5999F8	#FFFFFF	#000000	##000000
##5999F8	1.00	2.86	7.34	7.34
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.34	21.00	1.00	1.00
##000000	7.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6FA1FC

Deuteranopia (green-blind)

#5892F6

Tritanopia (blue-blind)

#00AFBD

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #5999f8;
/* rgb */ color: rgb(89, 153, 248);
/* oklch */ color: oklch(68.4% 0.156 258.2);

Tailwind

colors: {
  custom: {
    50: '#96b6fb',
    500: '#5999f8',
    950: '#000000',
  },
}

SCSS

$custom: #5999f8;
$custom-light: #96b6fb;
$custom-dark: #000000;

JSON

{
  "hex": "#5999f8",
  "rgb": {
    "r": 89,
    "g": 153,
    "b": 248
  },
  "hsl": {
    "h": 215.849,
    "s": 91.908,
    "l": 66.078
  },
  "oklch": {
    "l": 0.68404,
    "c": 0.15563,
    "h": 258.2
  },
  "luminance": 0.31684
}

Semantic roles & 50–950 ramp

primary

#5999F8

secondary

#F1DBBC

accent

#8900E6

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0F1117

muted

#7E8085

Preview Lab

Preview with #5999F8

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

Preview Lab → · Contrast checker → · Palette generator →