#5F99F0#5F99F0

#5F99F0 is a light, vivid blue. Relative luminance 0.315; OKLCH L 68.2% C 0.143 H 258.3°. Best body text is #000000 at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#5F99F0
RGB	rgb(95, 153, 240)
HSL	hsl(216, 83%, 66%)
HSV	hsv(216, 60%, 94%)
CMYK	cmyk(60.4%, 36.3%, 0%, 5.9%)
CIE-LAB	lab(62.93, 7.01, -49.38)
CIE-LCH	lch(62.93, 49.87, 278.08°)
OKLab	oklab(68.23% -0.029 -0.14)
OKLCH	oklch(68.23% 0.143 258.3)
XYZ	xyz(31.8332, 31.5038, 86.8244)
Luminance	0.3151 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F99F0 #F0B65F

analogous

#5FE1F0 #5F99F0 #6D5FF0

triadic

#5F99F0 #F05F99 #99F05F

tetradic

#5F99F0 #F05FE1 #F0B65F #5FF06D

square

#5F99F0 #F05FE1 #F0B65F #5FF06D

split-complementary

#5F99F0 #F06D5F #E1F05F

monochromatic

#1259C2 #2775EB #5F99F0 #97BDF5 #CFE0FA

Accessibility & contrast

On white

2.88

#5F99F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.30

#5F99F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5F99F0

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F99F0	#FFFFFF	#000000	##000000
##5F99F0	1.00	2.88	7.30	7.30
#FFFFFF	2.88	1.00	21.00	21.00
#000000	7.30	21.00	1.00	1.00
##000000	7.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#74A0F4

Deuteranopia (green-blind)

#6092EE

Tritanopia (blue-blind)

#00ADB9

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #5f99f0;
/* rgb */ color: rgb(95, 153, 240);
/* oklch */ color: oklch(68.2% 0.143 258.3);

Tailwind

colors: {
  custom: {
    50: '#98b6f5',
    500: '#5f99f0',
    950: '#000000',
  },
}

SCSS

$custom: #5f99f0;
$custom-light: #98b6f5;
$custom-dark: #000000;

JSON

{
  "hex": "#5f99f0",
  "rgb": {
    "r": 95,
    "g": 153,
    "b": 240
  },
  "hsl": {
    "h": 216,
    "s": 82.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.68228,
    "c": 0.14298,
    "h": 258.3
  },
  "luminance": 0.31507
}

Semantic roles & 50–950 ramp

primary

#5F99F0

secondary

#EEDABD

accent

#8806DF

background

#F9FBFF

surface

#F2F6FE

border

#CCD0D6

text

#0F1117

muted

#7E8085

Preview Lab

Preview with #5F99F0

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

Preview Lab → · Contrast checker → · Palette generator →