#5999F3#5999F3

#5999F3 is a light, vivid blue. Relative luminance 0.314; OKLCH L 68.1% C 0.149 H 257.2°. Best body text is #000000 at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#5999F3
RGB	rgb(89, 153, 243)
HSL	hsl(215, 87%, 65%)
HSV	hsv(215, 63%, 95%)
CMYK	cmyk(63.4%, 37%, 0%, 4.7%)
CIE-LAB	lab(62.82, 6.93, -51.21)
CIE-LCH	lch(62.82, 51.68, 277.71°)
OKLab	oklab(68.12% -0.0331 -0.1455)
OKLCH	oklch(68.12% 0.149 257.2)
XYZ	xyz(31.6829, 31.3743, 89.1628)
Luminance	0.3138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5999F3 #F3B359

analogous

#59E6F3 #5999F3 #6659F3

triadic

#5999F3 #F35999 #99F359

tetradic

#5999F3 #F359E6 #F3B359 #59F366

square

#5999F3 #F359E6 #F3B359 #59F366

split-complementary

#5999F3 #F36659 #E6F359

monochromatic

#0E59C3 #2076EF #5999F3 #92BCF7 #CBDFFB

Accessibility & contrast

On white

2.89

#5999F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.28

#5999F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5999F3

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5999F3	#FFFFFF	#000000	##000000
##5999F3	1.00	2.89	7.28	7.28
#FFFFFF	2.89	1.00	21.00	21.00
#000000	7.28	21.00	1.00	1.00
##000000	7.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#72A0F7

Deuteranopia (green-blind)

#5C91F1

Tritanopia (blue-blind)

#00AEBA

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #5999f3;
/* rgb */ color: rgb(89, 153, 243);
/* oklch */ color: oklch(68.1% 0.149 257.2);

Tailwind

colors: {
  custom: {
    50: '#95b6f7',
    500: '#5999f3',
    950: '#000000',
  },
}

SCSS

$custom: #5999f3;
$custom-light: #95b6f7;
$custom-dark: #000000;

JSON

{
  "hex": "#5999f3",
  "rgb": {
    "r": 89,
    "g": 153,
    "b": 243
  },
  "hsl": {
    "h": 215.065,
    "s": 86.517,
    "l": 65.098
  },
  "oklch": {
    "l": 0.68122,
    "c": 0.14918,
    "h": 257.2
  },
  "luminance": 0.31377
}

Semantic roles & 50–950 ramp

primary

#5999F3

secondary

#EED8BA

accent

#8602E3

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #5999F3

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

Preview Lab → · Contrast checker → · Palette generator →