#618CA3#618CA3
#618CA3 is a mid, muted cyan. Relative luminance 0.239; OKLCH L 61.7% C 0.059 H 232.3°. Best body text is #000000 at 5.79:1 contrast (WCAG AA passes).
Color values
| HEX | #618CA3 |
|---|---|
| RGB | rgb(97, 140, 163) |
| HSL | hsl(201, 26%, 51%) |
| HSV | hsv(201, 40%, 64%) |
| CMYK | cmyk(40.5%, 14.1%, 0%, 36.1%) |
| CIE-LAB | lab(56.03, -8.60, -16.82) |
| CIE-LCH | lch(56.03, 18.89, 242.94°) |
| OKLab | oklab(61.74% -0.0358 -0.0464) |
| OKLCH | oklch(61.74% 0.059 232.3) |
| XYZ | xyz(20.9165, 23.9406, 38.1621) |
| Luminance | 0.2394 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Greyish Blue
#5E819D
ΔE00 5.06
Bluish Grey
#748B97
ΔE00 5.19
Blue Grey
#758DA3
ΔE00 5.27
Dirty Blue
#3F829D
ΔE00 5.82
Dusty Blue
#5A86AD
ΔE00 5.92
Grey Blue
#647D8E
ΔE00 6.32
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#618CA3 #A37861
analogous
#61A399 #618CA3 #616BA3
triadic
#618CA3 #A3618C #8CA361
tetradic
#618CA3 #9961A3 #A37861 #6BA361
square
#618CA3 #9961A3 #A37861 #6BA361
split-complementary
#618CA3 #A3616B #A39961
monochromatic
#334A57 #496B7E #618CA3 #88A8BA #AEC4D0
Accessibility & contrast
On white
3.63
#618CA3 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.79
#618CA3 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #618CA3
5.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##618CA3 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##618CA3 | 1.00 | 3.63 | 5.79 | 5.79 |
| #FFFFFF | 3.63 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.79 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.79 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#818BA4
Deuteranopia (green-blind)
#7783A3
Tritanopia (blue-blind)
#489293
Achromatopsia (no color)
#868686
Design tokens & code
CSS
--color: #618ca3; /* rgb */ color: rgb(97, 140, 163); /* oklch */ color: oklch(61.7% 0.059 232.3);
Tailwind
colors: {
custom: {
50: '#91adbe',
500: '#618ca3',
950: '#000000',
},
}SCSS
$custom: #618ca3; $custom-light: #91adbe; $custom-dark: #000000;
JSON
{
"hex": "#618ca3",
"rgb": {
"r": 97,
"g": 140,
"b": 163
},
"hsl": {
"h": 200.909,
"s": 26.4,
"l": 50.98
},
"oklch": {
"l": 0.61744,
"c": 0.05859,
"h": 232.3
},
"luminance": 0.23942
}Semantic roles & 50–950 ramp
primary
#618CA3
secondary
#BFABA1
accent
#8665C3
background
#F9FAFB
surface
#F1F4F6
border
#CBCED0
text
#0D1012
muted
#7E7F81