#4F8FFB#4F8FFB

#4F8FFB is a light, vivid blue. Relative luminance 0.283; OKLCH L 66.1% C 0.174 H 260.2°. Best body text is #000000 at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#4F8FFB
RGB	rgb(79, 143, 251)
HSL	hsl(218, 96%, 65%)
HSV	hsv(218, 69%, 98%)
CMYK	cmyk(68.5%, 43%, 0%, 1.6%)
CIE-LAB	lab(60.13, 13.99, -59.92)
CIE-LCH	lch(60.13, 61.53, 283.14°)
OKLab	oklab(66.07% -0.0296 -0.1713)
OKLCH	oklch(66.07% 0.174 260.2)
XYZ	xyz(30.4533, 28.2691, 95.0996)
Luminance	0.2827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F8FFB #FBBB4F

analogous

#4FE5FB #4F8FFB #654FFB

triadic

#4F8FFB #FB4F8F #8FFB4F

tetradic

#4F8FFB #FB4FE5 #FBBB4F #4FFB65

square

#4F8FFB #FB4FE5 #FBBB4F #4FFB65

split-complementary

#4F8FFB #FB654F #E5FB4F

monochromatic

#054ECB #1369FA #4F8FFB #8BB5FC #C7DBFE

Accessibility & contrast

On white

3.16

#4F8FFB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.65

#4F8FFB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F8FFB

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F8FFB	#FFFFFF	#000000	##000000
##4F8FFB	1.00	3.16	6.65	6.65
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.65	21.00	1.00	1.00
##000000	6.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A99FF

Deuteranopia (green-blind)

#3C8AF9

Tritanopia (blue-blind)

#00A8B9

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #4f8ffb;
/* rgb */ color: rgb(79, 143, 251);
/* oklch */ color: oklch(66.1% 0.174 260.2);

Tailwind

colors: {
  custom: {
    50: '#92affd',
    500: '#4f8ffb',
    950: '#000000',
  },
}

SCSS

$custom: #4f8ffb;
$custom-light: #92affd;
$custom-dark: #000000;

JSON

{
  "hex": "#4f8ffb",
  "rgb": {
    "r": 79,
    "g": 143,
    "b": 251
  },
  "hsl": {
    "h": 217.674,
    "s": 95.556,
    "l": 64.706
  },
  "oklch": {
    "l": 0.66065,
    "c": 0.17382,
    "h": 260.2
  },
  "luminance": 0.28272
}

Semantic roles & 50–950 ramp

primary

#4F8FFB

secondary

#F0DAB5

accent

#9000E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1018

muted

#7E7F86

Preview Lab

Preview with #4F8FFB

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

Preview Lab → · Contrast checker → · Palette generator →