#3987AF#3987AF
#3987AF is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.2% C 0.097 H 234.2°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #3987AF |
|---|---|
| RGB | rgb(57, 135, 175) |
| HSL | hsl(200, 51%, 45%) |
| HSV | hsv(200, 67%, 69%) |
| CMYK | cmyk(67.4%, 22.9%, 0%, 31.4%) |
| CIE-LAB | lab(53.27, -10.97, -28.11) |
| CIE-LCH | lch(53.27, 30.17, 248.67°) |
| OKLab | oklab(59.23% -0.0569 -0.0789) |
| OKLCH | oklch(59.23% 0.097 234.2) |
| XYZ | xyz(18.0862, 21.2910, 43.7055) |
| Luminance | 0.2129 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dirty Blue
#3F829D
ΔE00 4.28
Steel Blue
#4682B4
ΔE00 4.79
Cool Blue
#4984B8
ΔE00 5.18
Cerulean
#007BA7
ΔE00 5.27
Water Blue
#0E87CC
ΔE00 5.37
Dusty Blue
#5A86AD
ΔE00 5.41
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3987AF #AF6139
analogous
#39AF9C #3987AF #394CAF
triadic
#3987AF #AF3987 #87AF39
tetradic
#3987AF #9C39AF #AF6139 #4CAF39
square
#3987AF #9C39AF #AF6139 #4CAF39
split-complementary
#3987AF #AF394C #AF9C39
monochromatic
#1B4053 #2A6381 #3987AF #5BA4CA #8ABED9
Accessibility & contrast
On white
3.99
#3987AF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.26
#3987AF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3987AF
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3987AF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3987AF | 1.00 | 3.99 | 5.26 | 5.26 |
| #FFFFFF | 3.99 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.26 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.26 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7486B1
Deuteranopia (green-blind)
#637AAE
Tritanopia (blue-blind)
#009294
Achromatopsia (no color)
#7F7F7F
Design tokens & code
CSS
--color: #3987af; /* rgb */ color: rgb(57, 135, 175); /* oklch */ color: oklch(59.2% 0.097 234.2);
Tailwind
colors: {
custom: {
50: '#7daac7',
500: '#3987af',
950: '#000000',
},
}SCSS
$custom: #3987af; $custom-light: #7daac7; $custom-dark: #000000;
JSON
{
"hex": "#3987af",
"rgb": {
"r": 57,
"g": 135,
"b": 175
},
"hsl": {
"h": 200.339,
"s": 50.862,
"l": 45.49
},
"oklch": {
"l": 0.5923,
"c": 0.09726,
"h": 234.2
},
"luminance": 0.21293
}Semantic roles & 50–950 ramp
primary
#3987AF
secondary
#C39781
accent
#7D4DDA
background
#F8FAFC
surface
#EFF4F8
border
#CACED1
text
#0B1013
muted
#7C7F82