#4F91DB#4F91DB

#4F91DB is a light, vivid cyan. Relative luminance 0.270; OKLCH L 64.6% C 0.130 H 252.8°. Best body text is #000000 at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#4F91DB
RGB	rgb(79, 145, 219)
HSL	hsl(212, 66%, 58%)
HSV	hsv(212, 64%, 86%)
CMYK	cmyk(63.9%, 33.8%, 0%, 14.1%)
CIE-LAB	lab(59.00, 1.86, -44.00)
CIE-LCH	lch(59.00, 44.04, 272.42°)
OKLab	oklab(64.63% -0.0386 -0.1246)
OKLCH	oklch(64.63% 0.13 252.8)
XYZ	xyz(26.1314, 27.0250, 70.8433)
Luminance	0.2703 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F91DB #DB994F

analogous

#4FD7DB #4F91DB #534FDB

triadic

#4F91DB #DB4F91 #91DB4F

tetradic

#4F91DB #DB4FD7 #DB994F #4FDB53

square

#4F91DB #DB4FD7 #DB994F #4FDB53

split-complementary

#4F91DB #DB534F #D7DB4F

monochromatic

#1E5492 #2872C5 #4F91DB #82B1E5 #B5D1F0

Accessibility & contrast

On white

3.28

#4F91DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.41

#4F91DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F91DB

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F91DB	#FFFFFF	#000000	##000000
##4F91DB	1.00	3.28	6.41	6.41
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.41	21.00	1.00	1.00
##000000	6.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7195DE

Deuteranopia (green-blind)

#5E88DA

Tritanopia (blue-blind)

#00A2AC

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #4f91db;
/* rgb */ color: rgb(79, 145, 219);
/* oklch */ color: oklch(64.6% 0.130 252.8);

Tailwind

colors: {
  custom: {
    50: '#8db0e6',
    500: '#4f91db',
    950: '#000000',
  },
}

SCSS

$custom: #4f91db;
$custom-light: #8db0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4f91db",
  "rgb": {
    "r": 79,
    "g": 145,
    "b": 219
  },
  "hsl": {
    "h": 211.714,
    "s": 66.038,
    "l": 58.431
  },
  "oklch": {
    "l": 0.64635,
    "c": 0.13046,
    "h": 252.8
  },
  "luminance": 0.27028
}

Semantic roles & 50–950 ramp

primary

#4F91DB

secondary

#DFC4A7

accent

#993FE9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4F91DB

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

Preview Lab → · Contrast checker → · Palette generator →