#437C8B#437C8B
#437C8B is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.3% C 0.064 H 216.9°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).
Color values
| HEX | #437C8B |
|---|---|
| RGB | rgb(67, 124, 139) |
| HSL | hsl(193, 35%, 40%) |
| HSV | hsv(193, 52%, 55%) |
| CMYK | cmyk(51.8%, 10.8%, 0%, 45.5%) |
| CIE-LAB | lab(48.85, -14.33, -13.91) |
| CIE-LCH | lch(48.85, 19.97, 224.16°) |
| OKLab | oklab(55.34% -0.0513 -0.0385) |
| OKLCH | oklch(55.34% 0.064 216.9) |
| XYZ | xyz(14.1808, 17.4715, 27.0461) |
| Luminance | 0.1747 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ocean
#017B92
ΔE00 4.57
Dirty Blue
#3F829D
ΔE00 4.88
Teal Blue
#01889F
ΔE00 6.05
Sea Blue
#047495
ΔE00 7.03
Deep Aqua
#08787F
ΔE00 7.57
Grey Blue
#647D8E
ΔE00 8.39
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#437C8B #8B5243
analogous
#438B76 #437C8B #43588B
triadic
#437C8B #8B437C #7C8B43
tetradic
#437C8B #76438B #8B5243 #588B43
square
#437C8B #76438B #8B5243 #588B43
split-complementary
#437C8B #8B4358 #8B7643
monochromatic
#1B3238 #2F5762 #437C8B #5B9EB0 #84B7C4
Accessibility & contrast
On white
4.67
#437C8B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.49
#437C8B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #437C8B
4.67:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##437C8B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##437C8B | 1.00 | 4.67 | 4.49 | 4.67 |
| #FFFFFF | 4.67 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.49 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.67 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#72798C
Deuteranopia (green-blind)
#67708B
Tritanopia (blue-blind)
#178181
Achromatopsia (no color)
#747474
Design tokens & code
CSS
--color: #437c8b; /* rgb */ color: rgb(67, 124, 139); /* oklch */ color: oklch(55.3% 0.064 216.9);
Tailwind
colors: {
custom: {
50: '#7da2ac',
500: '#437c8b',
950: '#000000',
},
}SCSS
$custom: #437c8b; $custom-light: #7da2ac; $custom-dark: #000000;
JSON
{
"hex": "#437c8b",
"rgb": {
"r": 67,
"g": 124,
"b": 139
},
"hsl": {
"h": 192.5,
"s": 34.951,
"l": 40.392
},
"oklch": {
"l": 0.55341,
"c": 0.06411,
"h": 216.9
},
"luminance": 0.17473
}Semantic roles & 50–950 ramp
primary
#437C8B
secondary
#AF867B
accent
#745DCB
background
#F7F9FA
surface
#EEF2F4
border
#C9CCCE
text
#0A0F10
muted
#7C7E7F