#3187B9#3187B9
#3187B9 is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.5% C 0.111 H 238.5°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).
Color values
| HEX | #3187B9 |
|---|---|
| RGB | rgb(49, 135, 185) |
| HSL | hsl(202, 58%, 46%) |
| HSV | hsv(202, 74%, 73%) |
| CMYK | cmyk(73.5%, 27%, 0%, 27.5%) |
| CIE-LAB | lab(53.47, -8.73, -33.54) |
| CIE-LCH | lch(53.47, 34.65, 255.42°) |
| OKLab | oklab(59.47% -0.058 -0.0946) |
| OKLCH | oklch(59.47% 0.111 238.5) |
| XYZ | xyz(18.6841, 21.4815, 49.0512) |
| Luminance | 0.2148 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Water Blue
#0E87CC
ΔE00 2.97
Steel Blue
#4682B4
ΔE00 3.60
Cool Blue
#4984B8
ΔE00 3.85
Cerulean (survey)
#0485D1
ΔE00 3.93
Off Blue
#5684AE
ΔE00 5.00
Nice Blue
#107AB0
ΔE00 5.08
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3187B9 #B96331
analogous
#31B9A7 #3187B9 #3143B9
triadic
#3187B9 #B93187 #87B931
tetradic
#3187B9 #A731B9 #B96331 #43B931
square
#3187B9 #A731B9 #B96331 #43B931
split-complementary
#3187B9 #B93143 #B9A731
monochromatic
#174058 #246489 #3187B9 #55A4D2 #86BEDF
Accessibility & contrast
On white
3.96
#3187B9 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.30
#3187B9 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3187B9
5.30:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3187B9 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3187B9 | 1.00 | 3.96 | 5.30 | 5.30 |
| #FFFFFF | 3.96 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.30 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.30 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6F87BB
Deuteranopia (green-blind)
#5D7AB8
Tritanopia (blue-blind)
#009498
Achromatopsia (no color)
#808080
Design tokens & code
CSS
--color: #3187b9; /* rgb */ color: rgb(49, 135, 185); /* oklch */ color: oklch(59.5% 0.111 238.5);
Tailwind
colors: {
custom: {
50: '#7ba9ce',
500: '#3187b9',
950: '#000000',
},
}SCSS
$custom: #3187b9; $custom-light: #7ba9ce; $custom-dark: #000000;
JSON
{
"hex": "#3187b9",
"rgb": {
"r": 49,
"g": 135,
"b": 185
},
"hsl": {
"h": 202.059,
"s": 58.12,
"l": 45.882
},
"oklch": {
"l": 0.59473,
"c": 0.11101,
"h": 238.5
},
"luminance": 0.21484
}Semantic roles & 50–950 ramp
primary
#3187B9
secondary
#C8997D
accent
#7F46E1
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0B1013
muted
#7C7F82