#4B87CB#4B87CB
#4B87CB is a mid, vivid cyan. Relative luminance 0.231; OKLCH L 61.4% C 0.121 H 253.0°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).
Color values
| HEX | #4B87CB |
|---|---|
| RGB | rgb(75, 135, 203) |
| HSL | hsl(212, 55%, 55%) |
| HSV | hsv(212, 63%, 80%) |
| CMYK | cmyk(63.1%, 33.5%, 0%, 20.4%) |
| CIE-LAB | lab(55.21, 1.64, -40.99) |
| CIE-LCH | lch(55.21, 41.02, 272.29°) |
| OKLab | oklab(61.37% -0.0356 -0.116) |
| OKLCH | oklch(61.37% 0.121 253) |
| XYZ | xyz(22.3412, 23.1335, 59.7762) |
| Luminance | 0.2314 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Cool Blue
#4984B8
ΔE00 2.82
Dark Sky Blue
#448EE4
ΔE00 3.28
Steel Blue
#4682B4
ΔE00 3.72
Off Blue
#5684AE
ΔE00 3.80
Faded Blue
#658CBB
ΔE00 4.03
Dusty Blue
#5A86AD
ΔE00 4.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4B87CB #CB8F4B
analogous
#4BC7CB #4B87CB #4F4BCB
triadic
#4B87CB #CB4B87 #87CB4B
tetradic
#4B87CB #CB4BC7 #CB8F4B #4BCB4F
square
#4B87CB #CB4BC7 #CB8F4B #4BCB4F
split-complementary
#4B87CB #CB4F4B #C7CB4B
monochromatic
#234B79 #3169A8 #4B87CB #7AA7D9 #AAC6E6
Accessibility & contrast
On white
3.73
#4B87CB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.63
#4B87CB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4B87CB
5.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4B87CB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4B87CB | 1.00 | 3.73 | 5.63 | 5.63 |
| #FFFFFF | 3.73 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.63 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.63 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6A8BCE
Deuteranopia (green-blind)
#587FCA
Tritanopia (blue-blind)
#0097A0
Achromatopsia (no color)
#848484
Design tokens & code
CSS
--color: #4b87cb; /* rgb */ color: rgb(75, 135, 203); /* oklch */ color: oklch(61.4% 0.121 253.0);
Tailwind
colors: {
custom: {
50: '#89a9db',
500: '#4b87cb',
950: '#000000',
},
}SCSS
$custom: #4b87cb; $custom-light: #89a9db; $custom-dark: #000000;
JSON
{
"hex": "#4b87cb",
"rgb": {
"r": 75,
"g": 135,
"b": 203
},
"hsl": {
"h": 211.875,
"s": 55.172,
"l": 54.51
},
"oklch": {
"l": 0.61369,
"c": 0.12134,
"h": 253
},
"luminance": 0.23136
}Semantic roles & 50–950 ramp
primary
#4B87CB
secondary
#D4BB9E
accent
#9949DF
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C0F15
muted
#7D7F83