#2587BC#2587BC
#2587BC is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.3% C 0.118 H 238.0°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).
Color values
| HEX | #2587BC |
|---|---|
| RGB | rgb(37, 135, 188) |
| HSL | hsl(201, 67%, 44%) |
| HSV | hsv(201, 80%, 74%) |
| CMYK | cmyk(80.3%, 28.2%, 0%, 26.3%) |
| CIE-LAB | lab(53.33, -9.07, -35.50) |
| CIE-LCH | lch(53.33, 36.64, 255.67°) |
| OKLab | oklab(59.33% -0.0626 -0.1004) |
| OKLCH | oklch(59.33% 0.118 238) |
| XYZ | xyz(18.5004, 21.3498, 50.7131) |
| Luminance | 0.2135 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Water Blue
#0E87CC
ΔE00 2.74
Cerulean (survey)
#0485D1
ΔE00 3.83
Steel Blue
#4682B4
ΔE00 4.11
Cool Blue
#4984B8
ΔE00 4.39
Nice Blue
#107AB0
ΔE00 4.94
Cerulean
#007BA7
ΔE00 5.64
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2587BC #BC5A25
analogous
#25BCA6 #2587BC #253BBC
triadic
#2587BC #BC2587 #87BC25
tetradic
#2587BC #A625BC #BC5A25 #3BBC25
square
#2587BC #A625BC #BC5A25 #3BBC25
split-complementary
#2587BC #BC253B #BCA625
monochromatic
#113E56 #1B6289 #2587BC #44A5DA #77BEE4
Accessibility & contrast
On white
3.98
#2587BC on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.27
#2587BC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #2587BC
5.27:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2587BC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##2587BC | 1.00 | 3.98 | 5.27 | 5.27 |
| #FFFFFF | 3.98 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.27 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.27 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6E87BE
Deuteranopia (green-blind)
#5979BB
Tritanopia (blue-blind)
#009499
Achromatopsia (no color)
#7F7F7F
Design tokens & code
CSS
--color: #2587bc; /* rgb */ color: rgb(37, 135, 188); /* oklch */ color: oklch(59.3% 0.118 238.0);
Tailwind
colors: {
custom: {
50: '#78a9d0',
500: '#2587bc',
950: '#000000',
},
}SCSS
$custom: #2587bc; $custom-light: #78a9d0; $custom-dark: #000000;
JSON
{
"hex": "#2587bc",
"rgb": {
"r": 37,
"g": 135,
"b": 188
},
"hsl": {
"h": 201.06,
"s": 67.111,
"l": 44.118
},
"oklch": {
"l": 0.59325,
"c": 0.11836,
"h": 238
},
"luminance": 0.21352
}Semantic roles & 50–950 ramp
primary
#2587BC
secondary
#CC9171
accent
#7A3EEA
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0A1014
muted
#7C7F82