#4F90E9#4F90E9

#4F90E9 is a light, vivid cyan. Relative luminance 0.275; OKLCH L 65.2% C 0.149 H 256.8°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#4F90E9
RGB	rgb(79, 144, 233)
HSL	hsl(215, 78%, 61%)
HSV	hsv(215, 66%, 91%)
CMYK	cmyk(66.1%, 38.2%, 0%, 8.6%)
CIE-LAB	lab(59.42, 7.19, -51.11)
CIE-LCH	lch(59.42, 51.61, 278.01°)
OKLab	oklab(65.2% -0.0341 -0.1454)
OKLCH	oklch(65.2% 0.149 256.8)
XYZ	xyz(27.9004, 27.4892, 80.9106)
Luminance	0.2749 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F90E9 #E9A84F

analogous

#4FDDE9 #4F90E9 #5B4FE9

triadic

#4F90E9 #E94F90 #90E94F

tetradic

#4F90E9 #E94FDD #E9A84F #4FE95B

square

#4F90E9 #E94FDD #E9A84F #4FE95B

split-complementary

#4F90E9 #E95B4F #DDE94F

monochromatic

#1553A9 #1C6EDF #4F90E9 #85B2F0 #BCD5F7

Accessibility & contrast

On white

3.23

#4F90E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.50

#4F90E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F90E9

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F90E9	#FFFFFF	#000000	##000000
##4F90E9	1.00	3.23	6.50	6.50
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.50	21.00	1.00	1.00
##000000	6.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6897ED

Deuteranopia (green-blind)

#5188E7

Tritanopia (blue-blind)

#00A4B1

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #4f90e9;
/* rgb */ color: rgb(79, 144, 233);
/* oklch */ color: oklch(65.2% 0.149 256.8);

Tailwind

colors: {
  custom: {
    50: '#8fb0f0',
    500: '#4f90e9',
    950: '#000000',
  },
}

SCSS

$custom: #4f90e9;
$custom-light: #8fb0f0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f90e9",
  "rgb": {
    "r": 79,
    "g": 144,
    "b": 233
  },
  "hsl": {
    "h": 214.675,
    "s": 77.778,
    "l": 61.176
  },
  "oklch": {
    "l": 0.65199,
    "c": 0.14939,
    "h": 256.8
  },
  "luminance": 0.27492
}

Semantic roles & 50–950 ramp

primary

#4F90E9

secondary

#E7CEAD

accent

#830BDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #4F90E9

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

Preview Lab → · Contrast checker → · Palette generator →