#5F99F4#5F99F4

#5F99F4 is a light, vivid blue. Relative luminance 0.317; OKLCH L 68.4% C 0.148 H 259.1°. Best body text is #000000 at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#5F99F4
RGB	rgb(95, 153, 244)
HSL	hsl(217, 87%, 66%)
HSV	hsv(217, 61%, 96%)
CMYK	cmyk(61.1%, 37.3%, 0%, 4.3%)
CIE-LAB	lab(63.13, 8.32, -51.26)
CIE-LCH	lch(63.13, 51.93, 279.22°)
OKLab	oklab(68.45% -0.0281 -0.1455)
OKLCH	oklch(68.45% 0.148 259.1)
XYZ	xyz(32.4339, 31.7441, 89.9884)
Luminance	0.3175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F99F4 #F4BA5F

analogous

#5FE4F4 #5F99F4 #705FF4

triadic

#5F99F4 #F45F99 #99F45F

tetradic

#5F99F4 #F45FE4 #F4BA5F #5FF470

square

#5F99F4 #F45FE4 #F4BA5F #5FF470

split-complementary

#5F99F4 #F4705F #E4F45F

monochromatic

#0E57CB #2674F0 #5F99F4 #98BEF8 #D2E2FC

Accessibility & contrast

On white

2.86

#5F99F4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.35

#5F99F4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5F99F4

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F99F4	#FFFFFF	#000000	##000000
##5F99F4	1.00	2.86	7.35	7.35
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.35	21.00	1.00	1.00
##000000	7.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#72A0F8

Deuteranopia (green-blind)

#5D92F2

Tritanopia (blue-blind)

#00AEBB

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #5f99f4;
/* rgb */ color: rgb(95, 153, 244);
/* oklch */ color: oklch(68.4% 0.148 259.1);

Tailwind

colors: {
  custom: {
    50: '#98b6f8',
    500: '#5f99f4',
    950: '#000000',
  },
}

SCSS

$custom: #5f99f4;
$custom-light: #98b6f8;
$custom-dark: #000000;

JSON

{
  "hex": "#5f99f4",
  "rgb": {
    "r": 95,
    "g": 153,
    "b": 244
  },
  "hsl": {
    "h": 216.644,
    "s": 87.135,
    "l": 66.471
  },
  "oklch": {
    "l": 0.68449,
    "c": 0.14819,
    "h": 259.1
  },
  "luminance": 0.31747
}

Semantic roles & 50–950 ramp

primary

#5F99F4

secondary

#F0DDBF

accent

#8C02E4

background

#FAFBFF

surface

#F3F6FF

border

#CDD0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #5F99F4

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

Preview Lab → · Contrast checker → · Palette generator →