#4F87E9#4F87E9

#4F87E9 is a light, vivid blue. Relative luminance 0.249; OKLCH L 63.3% C 0.159 H 260.8°. Best body text is #000000 at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#4F87E9
RGB	rgb(79, 135, 233)
HSL	hsl(218, 78%, 61%)
HSV	hsv(218, 66%, 91%)
CMYK	cmyk(66.1%, 42.1%, 0%, 8.6%)
CIE-LAB	lab(56.95, 12.58, -55.05)
CIE-LCH	lch(56.95, 56.47, 282.87°)
OKLab	oklab(63.28% -0.0255 -0.1571)
OKLCH	oklch(63.28% 0.159 260.8)
XYZ	xyz(26.5912, 24.8708, 80.4742)
Luminance	0.2487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F87E9 #E9B14F

analogous

#4FD4E9 #4F87E9 #644FE9

triadic

#4F87E9 #E94F87 #87E94F

tetradic

#4F87E9 #E94FD4 #E9B14F #4FE964

square

#4F87E9 #E94FD4 #E9B14F #4FE964

split-complementary

#4F87E9 #E9644F #D4E94F

monochromatic

#154BA9 #1C63DF #4F87E9 #85ACF0 #BCD1F7

Accessibility & contrast

On white

3.51

#4F87E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.97

#4F87E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F87E9

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F87E9	#FFFFFF	#000000	##000000
##4F87E9	1.00	3.51	5.97	5.97
#FFFFFF	3.51	1.00	21.00	21.00
#000000	5.97	21.00	1.00	1.00
##000000	5.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5990ED

Deuteranopia (green-blind)

#4082E7

Tritanopia (blue-blind)

#009EAD

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4f87e9;
/* rgb */ color: rgb(79, 135, 233);
/* oklch */ color: oklch(63.3% 0.159 260.8);

Tailwind

colors: {
  custom: {
    50: '#8fa9f0',
    500: '#4f87e9',
    950: '#000000',
  },
}

SCSS

$custom: #4f87e9;
$custom-light: #8fa9f0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f87e9",
  "rgb": {
    "r": 79,
    "g": 135,
    "b": 233
  },
  "hsl": {
    "h": 218.182,
    "s": 77.778,
    "l": 61.176
  },
  "oklch": {
    "l": 0.6328,
    "c": 0.15918,
    "h": 260.8
  },
  "luminance": 0.24873
}

Semantic roles & 50–950 ramp

primary

#4F87E9

secondary

#E7D2AD

accent

#8F0BDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #4F87E9

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

Preview Lab → · Contrast checker → · Palette generator →