#357AB9#357AB9
#357AB9 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.5% C 0.120 H 249.0°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).
Color values
| HEX | #357AB9 |
|---|---|
| RGB | rgb(53, 122, 185) |
| HSL | hsl(209, 55%, 47%) |
| HSV | hsv(209, 71%, 73%) |
| CMYK | cmyk(71.4%, 34.1%, 0%, 27.5%) |
| CIE-LAB | lab(49.71, -0.52, -39.44) |
| CIE-LCH | lch(49.71, 39.44, 269.24°) |
| OKLab | oklab(56.53% -0.0429 -0.1119) |
| OKLCH | oklch(56.53% 0.12 249) |
| XYZ | xyz(17.1814, 18.1769, 48.4925) |
| Luminance | 0.1818 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 1.58
Bluish
#2976BB
ΔE00 1.58
Flat Blue
#3C73A8
ΔE00 3.16
Steel Blue
#4682B4
ΔE00 3.33
Cool Blue
#4984B8
ΔE00 3.93
Medium Blue
#2C6FBB
ΔE00 4.21
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#357AB9 #B97435
analogous
#35B9B6 #357AB9 #3538B9
triadic
#357AB9 #B9357A #7AB935
tetradic
#357AB9 #B635B9 #B97435 #38B935
square
#357AB9 #B635B9 #B97435 #38B935
split-complementary
#357AB9 #B93538 #B9B635
monochromatic
#1A3B5A #275B89 #357AB9 #5B98D0 #8BB6DE
Accessibility & contrast
On white
4.53
#357AB9 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.64
#357AB9 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #357AB9
4.64:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##357AB9 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##357AB9 | 1.00 | 4.53 | 4.64 | 4.64 |
| #FFFFFF | 4.53 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.64 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.64 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5E7DBC
Deuteranopia (green-blind)
#4B71B8
Tritanopia (blue-blind)
#008991
Achromatopsia (no color)
#767676
Design tokens & code
CSS
--color: #357ab9; /* rgb */ color: rgb(53, 122, 185); /* oklch */ color: oklch(56.5% 0.120 249.0);
Tailwind
colors: {
custom: {
50: '#7ca0ce',
500: '#357ab9',
950: '#000000',
},
}SCSS
$custom: #357ab9; $custom-light: #7ca0ce; $custom-dark: #000000;
JSON
{
"hex": "#357ab9",
"rgb": {
"r": 53,
"g": 122,
"b": 185
},
"hsl": {
"h": 208.636,
"s": 55.462,
"l": 46.667
},
"oklch": {
"l": 0.56534,
"c": 0.11989,
"h": 249
},
"luminance": 0.18179
}Semantic roles & 50–950 ramp
primary
#357AB9
secondary
#C8A382
accent
#9049DF
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0B0E13
muted
#7C7E82