#357DBB#357DBB
#357DBB is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.3% C 0.120 H 247.7°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).
Color values
| HEX | #357DBB |
|---|---|
| RGB | rgb(53, 125, 187) |
| HSL | hsl(208, 56%, 47%) |
| HSV | hsv(208, 72%, 73%) |
| CMYK | cmyk(71.7%, 33.2%, 0%, 26.7%) |
| CIE-LAB | lab(50.70, -1.60, -39.03) |
| CIE-LCH | lch(50.70, 39.06, 267.65°) |
| OKLab | oklab(57.35% -0.0453 -0.1107) |
| OKLCH | oklch(57.35% 0.12 247.7) |
| XYZ | xyz(17.7681, 19.0100, 49.7370) |
| Luminance | 0.1901 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 2.43
Windows Blue
#3778BF
ΔE00 2.51
Bluish
#2976BB
ΔE00 2.64
Cool Blue
#4984B8
ΔE00 3.00
Cerulean (survey)
#0485D1
ΔE00 3.89
Flat Blue
#3C73A8
ΔE00 4.23
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#357DBB #BB7335
analogous
#35BBB6 #357DBB #353ABB
triadic
#357DBB #BB357D #7DBB35
tetradic
#357DBB #B635BB #BB7335 #3ABB35
square
#357DBB #B635BB #BB7335 #3ABB35
split-complementary
#357DBB #BB353A #BBB635
monochromatic
#1A3D5C #275D8B #357DBB #5C9BD1 #8CB8DE
Accessibility & contrast
On white
4.37
#357DBB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.80
#357DBB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #357DBB
4.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##357DBB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##357DBB | 1.00 | 4.37 | 4.80 | 4.80 |
| #FFFFFF | 4.37 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.80 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.80 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6180BE
Deuteranopia (green-blind)
#4E73BA
Tritanopia (blue-blind)
#008C93
Achromatopsia (no color)
#797979
Design tokens & code
CSS
--color: #357dbb; /* rgb */ color: rgb(53, 125, 187); /* oklch */ color: oklch(57.3% 0.120 247.7);
Tailwind
colors: {
custom: {
50: '#7da2d0',
500: '#357dbb',
950: '#000000',
},
}SCSS
$custom: #357dbb; $custom-light: #7da2d0; $custom-dark: #000000;
JSON
{
"hex": "#357dbb",
"rgb": {
"r": 53,
"g": 125,
"b": 187
},
"hsl": {
"h": 207.761,
"s": 55.833,
"l": 47.059
},
"oklch": {
"l": 0.57345,
"c": 0.11961,
"h": 247.7
},
"luminance": 0.19012
}Semantic roles & 50–950 ramp
primary
#357DBB
secondary
#C9A383
accent
#8E49DF
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0B0F14
muted
#7C7E82