#397AD1#397AD1
#397AD1 is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 58.1% C 0.149 H 256.7°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).
Color values
| HEX | #397AD1 |
|---|---|
| RGB | rgb(57, 122, 209) |
| HSL | hsl(214, 62%, 52%) |
| HSV | hsv(214, 73%, 82%) |
| CMYK | cmyk(72.7%, 41.6%, 0%, 18%) |
| CIE-LAB | lab(51.14, 8.74, -50.89) |
| CIE-LCH | lch(51.14, 51.63, 279.75°) |
| OKLab | oklab(58.11% -0.0345 -0.1454) |
| OKLCH | oklch(58.11% 0.149 256.7) |
| XYZ | xyz(20.1513, 19.3901, 62.9899) |
| Luminance | 0.1939 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 2.39
Deep Sky Blue
#0D75F8
ΔE00 4.04
Bluish
#2976BB
ΔE00 4.06
Clear Blue
#247AFD
ΔE00 4.55
Azure
#007FFF
ΔE00 4.70
Cool Blue
#4984B8
ΔE00 4.75
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#397AD1 #D19039
analogous
#39C6D1 #397AD1 #4439D1
triadic
#397AD1 #D1397A #7AD139
tetradic
#397AD1 #D139C6 #D19039 #39D144
square
#397AD1 #D139C6 #D19039 #39D144
split-complementary
#397AD1 #D14439 #C6D139
monochromatic
#1B4175 #275DA6 #397AD1 #6B9BDD #9CBDE8
Accessibility & contrast
On white
4.30
#397AD1 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.88
#397AD1 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #397AD1
4.88:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##397AD1 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##397AD1 | 1.00 | 4.30 | 4.88 | 4.88 |
| #FFFFFF | 4.30 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.88 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.88 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5081D4
Deuteranopia (green-blind)
#3673CF
Tritanopia (blue-blind)
#008E9B
Achromatopsia (no color)
#7A7A7A
Design tokens & code
CSS
--color: #397ad1; /* rgb */ color: rgb(57, 122, 209); /* oklch */ color: oklch(58.1% 0.149 256.7);
Tailwind
colors: {
custom: {
50: '#829fdf',
500: '#397ad1',
950: '#000000',
},
}SCSS
$custom: #397ad1; $custom-light: #829fdf; $custom-dark: #000000;
JSON
{
"hex": "#397ad1",
"rgb": {
"r": 57,
"g": 122,
"b": 209
},
"hsl": {
"h": 214.342,
"s": 62.295,
"l": 52.157
},
"oklch": {
"l": 0.58111,
"c": 0.14945,
"h": 256.7
},
"luminance": 0.19392
}Semantic roles & 50–950 ramp
primary
#397AD1
secondary
#D4B892
accent
#A042E5
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83