#4F88E9#4F88E9

#4F88E9 is a light, vivid blue. Relative luminance 0.252; OKLCH L 63.5% C 0.158 H 260.3°. Best body text is #000000 at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#4F88E9
RGB	rgb(79, 136, 233)
HSL	hsl(218, 78%, 61%)
HSV	hsv(218, 66%, 91%)
CMYK	cmyk(66.1%, 41.6%, 0%, 8.6%)
CIE-LAB	lab(57.22, 11.98, -54.62)
CIE-LCH	lch(57.22, 55.91, 282.37°)
OKLab	oklab(63.49% -0.0265 -0.1558)
OKLCH	oklch(63.49% 0.158 260.3)
XYZ	xyz(26.7313, 25.1511, 80.5209)
Luminance	0.2515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F88E9 #E9B04F

analogous

#4FD5E9 #4F88E9 #634FE9

triadic

#4F88E9 #E94F88 #88E94F

tetradic

#4F88E9 #E94FD5 #E9B04F #4FE963

square

#4F88E9 #E94FD5 #E9B04F #4FE963

split-complementary

#4F88E9 #E9634F #D5E94F

monochromatic

#154CA9 #1C64DF #4F88E9 #85ADF0 #BCD2F7

Accessibility & contrast

On white

3.48

#4F88E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.03

#4F88E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F88E9

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F88E9	#FFFFFF	#000000	##000000
##4F88E9	1.00	3.48	6.03	6.03
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.03	21.00	1.00	1.00
##000000	6.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B91ED

Deuteranopia (green-blind)

#4283E7

Tritanopia (blue-blind)

#009EAD

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4f88e9;
/* rgb */ color: rgb(79, 136, 233);
/* oklch */ color: oklch(63.5% 0.158 260.3);

Tailwind

colors: {
  custom: {
    50: '#8faaf0',
    500: '#4f88e9',
    950: '#000000',
  },
}

SCSS

$custom: #4f88e9;
$custom-light: #8faaf0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f88e9",
  "rgb": {
    "r": 79,
    "g": 136,
    "b": 233
  },
  "hsl": {
    "h": 217.792,
    "s": 77.778,
    "l": 61.176
  },
  "oklch": {
    "l": 0.63491,
    "c": 0.15807,
    "h": 260.3
  },
  "luminance": 0.25154
}

Semantic roles & 50–950 ramp

primary

#4F88E9

secondary

#E7D1AD

accent

#8E0BDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #4F88E9

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

Preview Lab → · Contrast checker → · Palette generator →