#4F91CB#4F91CB

#4F91CB is a light, moderate cyan. Relative luminance 0.262; OKLCH L 63.8% C 0.111 H 247.1°. Best body text is #000000 at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#4F91CB
RGB	rgb(79, 145, 203)
HSL	hsl(208, 54%, 55%)
HSV	hsv(208, 61%, 80%)
CMYK	cmyk(61.1%, 28.6%, 0%, 20.4%)
CIE-LAB	lab(58.25, -3.45, -36.21)
CIE-LCH	lch(58.25, 36.37, 264.55°)
OKLab	oklab(63.8% -0.0431 -0.102)
OKLCH	oklch(63.8% 0.111 247.1)
XYZ	xyz(24.1254, 26.2226, 60.2784)
Luminance	0.2622 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F91CB #CB894F

analogous

#4FCBC7 #4F91CB #4F53CB

triadic

#4F91CB #CB4F91 #91CB4F

tetradic

#4F91CB #C74FCB #CB894F #53CB4F

square

#4F91CB #C74FCB #CB894F #53CB4F

split-complementary

#4F91CB #CB4F53 #CBC74F

monochromatic

#24537B #3272AA #4F91CB #7EAFD9 #ADCCE7

Accessibility & contrast

On white

3.36

#4F91CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.24

#4F91CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F91CB

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F91CB	#FFFFFF	#000000	##000000
##4F91CB	1.00	3.36	6.24	6.24
#FFFFFF	3.36	1.00	21.00	21.00
#000000	6.24	21.00	1.00	1.00
##000000	6.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7893CE

Deuteranopia (green-blind)

#6787CA

Tritanopia (blue-blind)

#009FA5

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #4f91cb;
/* rgb */ color: rgb(79, 145, 203);
/* oklch */ color: oklch(63.8% 0.111 247.1);

Tailwind

colors: {
  custom: {
    50: '#8bb1db',
    500: '#4f91cb',
    950: '#000000',
  },
}

SCSS

$custom: #4f91cb;
$custom-light: #8bb1db;
$custom-dark: #000000;

JSON

{
  "hex": "#4f91cb",
  "rgb": {
    "r": 79,
    "g": 145,
    "b": 203
  },
  "hsl": {
    "h": 208.065,
    "s": 54.386,
    "l": 55.294
  },
  "oklch": {
    "l": 0.638,
    "c": 0.11072,
    "h": 247.1
  },
  "luminance": 0.26225
}

Semantic roles & 50–950 ramp

primary

#4F91CB

secondary

#D5B9A1

accent

#8F4ADE

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #4F91CB

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

Preview Lab → · Contrast checker → · Palette generator →