#497BB1#497BB1
#497BB1 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.2% C 0.100 H 251.6°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).
Color values
| HEX | #497BB1 |
|---|---|
| RGB | rgb(73, 123, 177) |
| HSL | hsl(211, 42%, 49%) |
| HSV | hsv(211, 59%, 69%) |
| CMYK | cmyk(58.8%, 30.5%, 0%, 30.6%) |
| CIE-LAB | lab(50.40, -0.34, -33.68) |
| CIE-LCH | lch(50.40, 33.69, 269.43°) |
| OKLab | oklab(57.17% -0.0315 -0.0949) |
| OKLCH | oklch(57.17% 0.1 251.6) |
| XYZ | xyz(17.7636, 18.7551, 44.2704) |
| Luminance | 0.1876 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 2.22
Steel Blue
#4682B4
ΔE00 3.19
Bluish
#2976BB
ΔE00 3.39
Flat Blue
#3C73A8
ΔE00 3.40
Cool Blue
#4984B8
ΔE00 3.59
Dull Blue
#49759C
ΔE00 3.66
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#497BB1 #B17F49
analogous
#49AFB1 #497BB1 #4B49B1
triadic
#497BB1 #B1497B #7BB149
tetradic
#497BB1 #B149AF #B17F49 #49B14B
square
#497BB1 #B149AF #B17F49 #49B14B
split-complementary
#497BB1 #B14B49 #AFB149
monochromatic
#253F5A #375D86 #497BB1 #729AC5 #9EB9D7
Accessibility & contrast
On white
4.42
#497BB1 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.75
#497BB1 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #497BB1
4.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##497BB1 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##497BB1 | 1.00 | 4.42 | 4.75 | 4.75 |
| #FFFFFF | 4.42 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.75 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.75 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#647EB3
Deuteranopia (green-blind)
#5773B0
Tritanopia (blue-blind)
#00878E
Achromatopsia (no color)
#787878
Design tokens & code
CSS
--color: #497bb1; /* rgb */ color: rgb(73, 123, 177); /* oklch */ color: oklch(57.2% 0.100 251.6);
Tailwind
colors: {
custom: {
50: '#84a0c8',
500: '#497bb1',
950: '#000000',
},
}SCSS
$custom: #497bb1; $custom-light: #84a0c8; $custom-dark: #000000;
JSON
{
"hex": "#497bb1",
"rgb": {
"r": 73,
"g": 123,
"b": 177
},
"hsl": {
"h": 211.154,
"s": 41.6,
"l": 49.02
},
"oklch": {
"l": 0.57165,
"c": 0.09999,
"h": 251.6
},
"luminance": 0.18757
}Semantic roles & 50–950 ramp
primary
#497BB1
secondary
#C3AC92
accent
#9656D1
background
#F8F9FC
surface
#F0F2F8
border
#CBCCD1
text
#0B0E13
muted
#7C7E82