#5F99EB#5F99EB

#5F99EB is a light, vivid blue. Relative luminance 0.312; OKLCH L 68.0% C 0.136 H 257.2°. Best body text is #000000 at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#5F99EB
RGB	rgb(95, 153, 235)
HSL	hsl(215, 78%, 65%)
HSV	hsv(215, 60%, 92%)
CMYK	cmyk(59.6%, 34.9%, 0%, 7.8%)
CIE-LAB	lab(62.69, 5.39, -47.01)
CIE-LCH	lch(62.69, 47.32, 276.54°)
OKLab	oklab(67.96% -0.0302 -0.1331)
OKLCH	oklch(67.96% 0.136 257.2)
XYZ	xyz(31.1006, 31.2108, 82.9665)
Luminance	0.3121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F99EB #EBB15F

analogous

#5FDFEB #5F99EB #6B5FEB

triadic

#5F99EB #EB5F99 #99EB5F

tetradic

#5F99EB #EB5FDF #EBB15F #5FEB6B

square

#5F99EB #EB5FDF #EBB15F #5FEB6B

split-complementary

#5F99EB #EB6B5F #DFEB5F

monochromatic

#175AB9 #2976E4 #5F99EB #95BCF2 #CCDEF9

Accessibility & contrast

On white

2.90

#5F99EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.24

#5F99EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5F99EB

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F99EB	#FFFFFF	#000000	##000000
##5F99EB	1.00	2.90	7.24	7.24
#FFFFFF	2.90	1.00	21.00	21.00
#000000	7.24	21.00	1.00	1.00
##000000	7.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#769FEE

Deuteranopia (green-blind)

#6492E9

Tritanopia (blue-blind)

#00ACB7

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #5f99eb;
/* rgb */ color: rgb(95, 153, 235);
/* oklch */ color: oklch(68.0% 0.136 257.2);

Tailwind

colors: {
  custom: {
    50: '#97b6f2',
    500: '#5f99eb',
    950: '#000000',
  },
}

SCSS

$custom: #5f99eb;
$custom-light: #97b6f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5f99eb",
  "rgb": {
    "r": 95,
    "g": 153,
    "b": 235
  },
  "hsl": {
    "h": 215.143,
    "s": 77.778,
    "l": 64.706
  },
  "oklch": {
    "l": 0.67957,
    "c": 0.13649,
    "h": 257.2
  },
  "luminance": 0.31214
}

Semantic roles & 50–950 ramp

primary

#5F99EB

secondary

#EBD7BB

accent

#840BDA

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #5F99EB

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

Preview Lab → · Contrast checker → · Palette generator →