#4381B0#4381B0
#4381B0 is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 58.2% C 0.097 H 243.5°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).
Color values
| HEX | #4381B0 |
|---|---|
| RGB | rgb(67, 129, 176) |
| HSL | hsl(206, 45%, 48%) |
| HSV | hsv(206, 62%, 69%) |
| CMYK | cmyk(61.9%, 26.7%, 0%, 31%) |
| CIE-LAB | lab(51.87, -5.41, -30.83) |
| CIE-LCH | lch(51.87, 31.30, 260.05°) |
| OKLab | oklab(58.24% -0.0433 -0.0867) |
| OKLCH | oklch(58.24% 0.097 243.5) |
| XYZ | xyz(17.9985, 20.0267, 43.9829) |
| Luminance | 0.2003 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 1.03
Cool Blue
#4984B8
ΔE00 1.94
Off Blue
#5684AE
ΔE00 2.85
Dusty Blue
#5A86AD
ΔE00 3.53
Stormy Blue
#507B9C
ΔE00 3.89
Water Blue
#0E87CC
ΔE00 4.26
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4381B0 #B07243
analogous
#43B0A9 #4381B0 #434AB0
triadic
#4381B0 #B04381 #81B043
tetradic
#4381B0 #A943B0 #B07243 #4AB043
square
#4381B0 #A943B0 #B07243 #4AB043
split-complementary
#4381B0 #B0434A #B0A943
monochromatic
#214057 #326184 #4381B0 #6A9EC6 #96BBD7
Accessibility & contrast
On white
4.20
#4381B0 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.01
#4381B0 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4381B0
5.01:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4381B0 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4381B0 | 1.00 | 4.20 | 5.01 | 5.01 |
| #FFFFFF | 4.20 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.01 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.01 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6C82B2
Deuteranopia (green-blind)
#5D77AF
Tritanopia (blue-blind)
#008C91
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #4381b0; /* rgb */ color: rgb(67, 129, 176); /* oklch */ color: oklch(58.2% 0.097 243.5);
Tailwind
colors: {
custom: {
50: '#81a5c7',
500: '#4381b0',
950: '#000000',
},
}SCSS
$custom: #4381b0; $custom-light: #81a5c7; $custom-dark: #000000;
JSON
{
"hex": "#4381b0",
"rgb": {
"r": 67,
"g": 129,
"b": 176
},
"hsl": {
"h": 205.872,
"s": 44.856,
"l": 47.647
},
"oklch": {
"l": 0.58235,
"c": 0.09688,
"h": 243.5
},
"luminance": 0.20028
}Semantic roles & 50–950 ramp
primary
#4381B0
secondary
#C3A48C
accent
#8B53D5
background
#F8FAFC
surface
#EFF4F8
border
#CACED1
text
#0B0F13
muted
#7C7F82