#4F647B#4F647B
#4F647B is a mid, muted cyan. Relative luminance 0.122; OKLCH L 49.5% C 0.045 H 251.0°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).
Color values
| HEX | #4F647B |
|---|---|
| RGB | rgb(79, 100, 123) |
| HSL | hsl(211, 22%, 40%) |
| HSV | hsv(211, 36%, 48%) |
| CMYK | cmyk(35.8%, 18.7%, 0%, 51.8%) |
| CIE-LAB | lab(41.54, -1.76, -15.41) |
| CIE-LCH | lch(41.54, 15.51, 263.47°) |
| OKLab | oklab(49.52% -0.0146 -0.0424) |
| OKLCH | oklch(49.52% 0.045 251) |
| XYZ | xyz(11.3557, 12.2061, 20.4927) |
| Luminance | 0.1221 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Slate
#516572
ΔE00 4.72
Denim (survey)
#3B638C
ΔE00 5.50
Metallic Blue
#4F738E
ΔE00 6.33
Ugly Blue
#31668A
ΔE00 6.43
Slate Grey
#59656D
ΔE00 6.51
Cadet Blue
#4E7496
ΔE00 6.98
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4F647B #7B664F
analogous
#4F7A7B #4F647B #504F7B
triadic
#4F647B #7B4F64 #647B4F
tetradic
#4F647B #7B4F7A #7B664F #4F7B50
square
#4F647B #7B4F7A #7B664F #4F7B50
split-complementary
#4F647B #7B504F #7A7B4F
monochromatic
#1F2730 #374656 #4F647B #69829E #8EA1B6
Accessibility & contrast
On white
6.10
#4F647B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.44
#4F647B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4F647B
6.10:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4F647B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4F647B | 1.00 | 6.10 | 3.44 | 6.10 |
| #FFFFFF | 6.10 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.44 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.10 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5B657C
Deuteranopia (green-blind)
#56607B
Tritanopia (blue-blind)
#41696C
Achromatopsia (no color)
#626262
Design tokens & code
CSS
--color: #4f647b; /* rgb */ color: rgb(79, 100, 123); /* oklch */ color: oklch(49.5% 0.045 251.0);
Tailwind
colors: {
custom: {
50: '#8290a1',
500: '#4f647b',
950: '#000000',
},
}SCSS
$custom: #4f647b; $custom-light: #8290a1; $custom-dark: #000000;
JSON
{
"hex": "#4f647b",
"rgb": {
"r": 79,
"g": 100,
"b": 123
},
"hsl": {
"h": 211.364,
"s": 21.782,
"l": 39.608
},
"oklch": {
"l": 0.4952,
"c": 0.04488,
"h": 251
},
"luminance": 0.12207
}Semantic roles & 50–950 ramp
primary
#4F647B
secondary
#A39482
accent
#9669BE
background
#F8F8F9
surface
#EFF0F2
border
#CACBCC
text
#0A0C0F
muted
#7C7D7E