#4F90F2#4F90F2

#4F90F2 is a light, vivid blue. Relative luminance 0.280; OKLCH L 65.7% C 0.161 H 258.5°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#4F90F2
RGB	rgb(79, 144, 242)
HSL	hsl(216, 86%, 63%)
HSV	hsv(216, 67%, 95%)
CMYK	cmyk(67.4%, 40.5%, 0%, 5.1%)
CIE-LAB	lab(59.90, 10.28, -55.33)
CIE-LCH	lch(59.90, 56.27, 280.53°)
OKLab	oklab(65.73% -0.0322 -0.1578)
OKLCH	oklch(65.73% 0.161 258.5)
XYZ	xyz(29.2189, 28.0166, 87.8551)
Luminance	0.2802 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F90F2 #F2B14F

analogous

#4FE1F2 #4F90F2 #604FF2

triadic

#4F90F2 #F24F90 #90F24F

tetradic

#4F90F2 #F24FE1 #F2B14F #4FF260

square

#4F90F2 #F24FE1 #F2B14F #4FF260

split-complementary

#4F90F2 #F2604F #E1F24F

monochromatic

#0E52B9 #166CEE #4F90F2 #88B4F6 #C1D8FA

Accessibility & contrast

On white

3.18

#4F90F2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#4F90F2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F90F2

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F90F2	#FFFFFF	#000000	##000000
##4F90F2	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6399F6

Deuteranopia (green-blind)

#4989F0

Tritanopia (blue-blind)

#00A7B5

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #4f90f2;
/* rgb */ color: rgb(79, 144, 242);
/* oklch */ color: oklch(65.7% 0.161 258.5);

Tailwind

colors: {
  custom: {
    50: '#91b0f7',
    500: '#4f90f2',
    950: '#000000',
  },
}

SCSS

$custom: #4f90f2;
$custom-light: #91b0f7;
$custom-dark: #000000;

JSON

{
  "hex": "#4f90f2",
  "rgb": {
    "r": 79,
    "g": 144,
    "b": 242
  },
  "hsl": {
    "h": 216.074,
    "s": 86.243,
    "l": 62.941
  },
  "oklch": {
    "l": 0.65727,
    "c": 0.16104,
    "h": 258.5
  },
  "luminance": 0.2802
}

Semantic roles & 50–950 ramp

primary

#4F90F2

secondary

#ECD4B1

accent

#8903E3

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #4F90F2

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

Preview Lab → · Contrast checker → · Palette generator →