#4F90DB#4F90DB

#4F90DB is a light, vivid cyan. Relative luminance 0.267; OKLCH L 64.4% C 0.131 H 253.4°. Best body text is #000000 at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#4F90DB
RGB	rgb(79, 144, 219)
HSL	hsl(212, 66%, 58%)
HSV	hsv(212, 64%, 86%)
CMYK	cmyk(63.9%, 34.2%, 0%, 14.1%)
CIE-LAB	lab(58.71, 2.44, -44.44)
CIE-LCH	lch(58.71, 44.51, 273.14°)
OKLab	oklab(64.41% -0.0375 -0.1259)
OKLCH	oklch(64.41% 0.131 253.4)
XYZ	xyz(25.9792, 26.7207, 70.7926)
Luminance	0.2672 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F90DB #DB9A4F

analogous

#4FD6DB #4F90DB #544FDB

triadic

#4F90DB #DB4F90 #90DB4F

tetradic

#4F90DB #DB4FD6 #DB9A4F #4FDB54

square

#4F90DB #DB4FD6 #DB9A4F #4FDB54

split-complementary

#4F90DB #DB544F #D6DB4F

monochromatic

#1E5492 #2871C5 #4F90DB #82B0E5 #B5D0F0

Accessibility & contrast

On white

3.31

#4F90DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.34

#4F90DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F90DB

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F90DB	#FFFFFF	#000000	##000000
##4F90DB	1.00	3.31	6.34	6.34
#FFFFFF	3.31	1.00	21.00	21.00
#000000	6.34	21.00	1.00	1.00
##000000	6.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F95DE

Deuteranopia (green-blind)

#5C87D9

Tritanopia (blue-blind)

#00A1AB

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #4f90db;
/* rgb */ color: rgb(79, 144, 219);
/* oklch */ color: oklch(64.4% 0.131 253.4);

Tailwind

colors: {
  custom: {
    50: '#8db0e6',
    500: '#4f90db',
    950: '#000000',
  },
}

SCSS

$custom: #4f90db;
$custom-light: #8db0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4f90db",
  "rgb": {
    "r": 79,
    "g": 144,
    "b": 219
  },
  "hsl": {
    "h": 212.143,
    "s": 66.038,
    "l": 58.431
  },
  "oklch": {
    "l": 0.64414,
    "c": 0.13142,
    "h": 253.4
  },
  "luminance": 0.26723
}

Semantic roles & 50–950 ramp

primary

#4F90DB

secondary

#DFC5A7

accent

#9A3FE9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4F90DB

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

Preview Lab → · Contrast checker → · Palette generator →