#4F90CB#4F90CB

#4F90CB is a light, moderate cyan. Relative luminance 0.259; OKLCH L 63.6% C 0.112 H 247.8°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#4F90CB
RGB	rgb(79, 144, 203)
HSL	hsl(209, 54%, 55%)
HSV	hsv(209, 61%, 80%)
CMYK	cmyk(61.1%, 29.1%, 0%, 20.4%)
CIE-LAB	lab(57.96, -2.88, -36.66)
CIE-LCH	lch(57.96, 36.77, 265.51°)
OKLab	oklab(63.57% -0.0421 -0.1033)
OKLCH	oklch(63.57% 0.112 247.8)
XYZ	xyz(23.9732, 25.9183, 60.2277)
Luminance	0.2592 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F90CB #CB8A4F

analogous

#4FCBC8 #4F90CB #4F52CB

triadic

#4F90CB #CB4F90 #90CB4F

tetradic

#4F90CB #C84FCB #CB8A4F #52CB4F

square

#4F90CB #C84FCB #CB8A4F #52CB4F

split-complementary

#4F90CB #CB4F52 #CBC84F

monochromatic

#24527B #3271AA #4F90CB #7EAED9 #ADCCE7

Accessibility & contrast

On white

3.40

#4F90CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#4F90CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F90CB

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F90CB	#FFFFFF	#000000	##000000
##4F90CB	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7792CE

Deuteranopia (green-blind)

#6686CA

Tritanopia (blue-blind)

#009EA5

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #4f90cb;
/* rgb */ color: rgb(79, 144, 203);
/* oklch */ color: oklch(63.6% 0.112 247.8);

Tailwind

colors: {
  custom: {
    50: '#8bb0db',
    500: '#4f90cb',
    950: '#000000',
  },
}

SCSS

$custom: #4f90cb;
$custom-light: #8bb0db;
$custom-dark: #000000;

JSON

{
  "hex": "#4f90cb",
  "rgb": {
    "r": 79,
    "g": 144,
    "b": 203
  },
  "hsl": {
    "h": 208.548,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.63573,
    "c": 0.11153,
    "h": 247.8
  },
  "luminance": 0.25921
}

Semantic roles & 50–950 ramp

primary

#4F90CB

secondary

#D5BAA1

accent

#904ADE

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #4F90CB

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

Preview Lab → · Contrast checker → · Palette generator →