#397CA5#397CA5
#397CA5 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.1% C 0.093 H 238.4°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).
Color values
| HEX | #397CA5 |
|---|---|
| RGB | rgb(57, 124, 165) |
| HSL | hsl(203, 49%, 44%) |
| HSV | hsv(203, 65%, 65%) |
| CMYK | cmyk(65.5%, 24.8%, 0%, 35.3%) |
| CIE-LAB | lab(49.50, -8.06, -28.18) |
| CIE-LCH | lch(49.50, 29.31, 254.03°) |
| OKLab | oklab(56.09% -0.0487 -0.0792) |
| OKLCH | oklch(56.09% 0.093 238.4) |
| XYZ | xyz(15.6839, 18.0002, 38.2378) |
| Luminance | 0.1800 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Nice Blue
#107AB0
ΔE00 2.85
Stormy Blue
#507B9C
ΔE00 3.33
Cerulean
#007BA7
ΔE00 3.36
Steel Blue
#4682B4
ΔE00 4.04
Dull Blue
#49759C
ΔE00 4.23
Muted Blue
#3B719F
ΔE00 4.86
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#397CA5 #A56239
analogous
#39A598 #397CA5 #3946A5
triadic
#397CA5 #A5397C #7CA539
tetradic
#397CA5 #9839A5 #A56239 #46A539
square
#397CA5 #9839A5 #A56239 #46A539
split-complementary
#397CA5 #A53946 #A59839
monochromatic
#1A384A #295A78 #397CA5 #569BC5 #84B6D4
Accessibility & contrast
On white
4.56
#397CA5 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.60
#397CA5 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #397CA5
4.60:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##397CA5 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##397CA5 | 1.00 | 4.56 | 4.60 | 4.60 |
| #FFFFFF | 4.56 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.60 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.60 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#697CA7
Deuteranopia (green-blind)
#5A71A4
Tritanopia (blue-blind)
#00868A
Achromatopsia (no color)
#767676
Design tokens & code
CSS
--color: #397ca5; /* rgb */ color: rgb(57, 124, 165); /* oklch */ color: oklch(56.1% 0.093 238.4);
Tailwind
colors: {
custom: {
50: '#7ba1c0',
500: '#397ca5',
950: '#000000',
},
}SCSS
$custom: #397ca5; $custom-light: #7ba1c0; $custom-dark: #000000;
JSON
{
"hex": "#397ca5",
"rgb": {
"r": 57,
"g": 124,
"b": 165
},
"hsl": {
"h": 202.778,
"s": 48.649,
"l": 43.529
},
"oklch": {
"l": 0.56092,
"c": 0.09294,
"h": 238.4
},
"luminance": 0.18002
}Semantic roles & 50–950 ramp
primary
#397CA5
secondary
#BE957B
accent
#8350D8
background
#F7F9FB
surface
#EEF2F7
border
#C9CCD0
text
#0A0F12
muted
#7C7E81