#357FB4#357FB4
#357FB4 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.4% C 0.110 H 243.2°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).
Color values
| HEX | #357FB4 |
|---|---|
| RGB | rgb(53, 127, 180) |
| HSL | hsl(205, 55%, 46%) |
| HSV | hsv(205, 71%, 71%) |
| CMYK | cmyk(70.6%, 29.4%, 0%, 29.4%) |
| CIE-LAB | lab(50.95, -5.28, -34.60) |
| CIE-LCH | lch(50.95, 35.00, 261.33°) |
| OKLab | oklab(57.43% -0.0494 -0.0978) |
| OKLCH | oklch(57.43% 0.11 243.2) |
| XYZ | xyz(17.2926, 19.2290, 45.9714) |
| Luminance | 0.1923 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 2.10
Cool Blue
#4984B8
ΔE00 2.95
Nice Blue
#107AB0
ΔE00 3.13
Cerulean (survey)
#0485D1
ΔE00 3.74
Water Blue
#0E87CC
ΔE00 3.82
Bluish
#2976BB
ΔE00 4.00
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#357FB4 #B46A35
analogous
#35B4A9 #357FB4 #3540B4
triadic
#357FB4 #B4357F #7FB435
tetradic
#357FB4 #A935B4 #B46A35 #40B435
square
#357FB4 #A935B4 #B46A35 #40B435
split-complementary
#357FB4 #B43540 #B4A935
monochromatic
#193C55 #275E85 #357FB4 #589DCE #88B9DC
Accessibility & contrast
On white
4.33
#357FB4 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.85
#357FB4 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #357FB4
4.85:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##357FB4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##357FB4 | 1.00 | 4.33 | 4.85 | 4.85 |
| #FFFFFF | 4.33 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.85 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.85 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6780B6
Deuteranopia (green-blind)
#5574B3
Tritanopia (blue-blind)
#008C92
Achromatopsia (no color)
#797979
Design tokens & code
CSS
--color: #357fb4; /* rgb */ color: rgb(53, 127, 180); /* oklch */ color: oklch(57.4% 0.110 243.2);
Tailwind
colors: {
custom: {
50: '#7ca3ca',
500: '#357fb4',
950: '#000000',
},
}SCSS
$custom: #357fb4; $custom-light: #7ca3ca; $custom-dark: #000000;
JSON
{
"hex": "#357fb4",
"rgb": {
"r": 53,
"g": 127,
"b": 180
},
"hsl": {
"h": 205.039,
"s": 54.506,
"l": 45.686
},
"oklch": {
"l": 0.57434,
"c": 0.10955,
"h": 243.2
},
"luminance": 0.19231
}Semantic roles & 50–950 ramp
primary
#357FB4
secondary
#C69D7F
accent
#884ADE
background
#F8FAFC
surface
#EFF3F8
border
#CACDD1
text
#0B0F13
muted
#7C7F82