#397ACF#397ACF
#397ACF is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 58.0% C 0.147 H 256.3°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).
Color values
| HEX | #397ACF |
|---|---|
| RGB | rgb(57, 122, 207) |
| HSL | hsl(214, 61%, 52%) |
| HSV | hsv(214, 72%, 81%) |
| CMYK | cmyk(72.5%, 41.1%, 0%, 18.8%) |
| CIE-LAB | lab(51.03, 8.02, -49.93) |
| CIE-LCH | lch(51.03, 50.57, 279.12°) |
| OKLab | oklab(57.99% -0.0349 -0.1426) |
| OKLCH | oklch(57.99% 0.147 256.3) |
| XYZ | xyz(19.9052, 19.2917, 61.6940) |
| Luminance | 0.1929 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 2.16
Bluish
#2976BB
ΔE00 3.83
Deep Sky Blue
#0D75F8
ΔE00 4.23
Cool Blue
#4984B8
ΔE00 4.64
Steel Blue
#4682B4
ΔE00 4.65
Medium Blue
#2C6FBB
ΔE00 4.75
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#397ACF #CF8E39
analogous
#39C5CF #397ACF #4339CF
triadic
#397ACF #CF397A #7ACF39
tetradic
#397ACF #CF39C5 #CF8E39 #39CF43
square
#397ACF #CF39C5 #CF8E39 #39CF43
split-complementary
#397ACF #CF4339 #C5CF39
monochromatic
#1C4172 #285DA3 #397ACF #6A9BDB #9CBCE7
Accessibility & contrast
On white
4.32
#397ACF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.86
#397ACF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #397ACF
4.86:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##397ACF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##397ACF | 1.00 | 4.32 | 4.86 | 4.86 |
| #FFFFFF | 4.32 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.86 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.86 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5181D2
Deuteranopia (green-blind)
#3973CD
Tritanopia (blue-blind)
#008E9A
Achromatopsia (no color)
#7A7A7A
Design tokens & code
CSS
--color: #397acf; /* rgb */ color: rgb(57, 122, 207); /* oklch */ color: oklch(58.0% 0.147 256.3);
Tailwind
colors: {
custom: {
50: '#829fde',
500: '#397acf',
950: '#000000',
},
}SCSS
$custom: #397acf; $custom-light: #829fde; $custom-dark: #000000;
JSON
{
"hex": "#397acf",
"rgb": {
"r": 57,
"g": 122,
"b": 207
},
"hsl": {
"h": 214,
"s": 60.976,
"l": 51.765
},
"oklch": {
"l": 0.57986,
"c": 0.14683,
"h": 256.3
},
"luminance": 0.19294
}Semantic roles & 50–950 ramp
primary
#397ACF
secondary
#D3B691
accent
#9F44E4
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83