#377E8D#377E8D
#377E8D is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.4% C 0.074 H 213.7°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).
Color values
| HEX | #377E8D |
|---|---|
| RGB | rgb(55, 126, 141) |
| HSL | hsl(190, 44%, 38%) |
| HSV | hsv(190, 61%, 55%) |
| CMYK | cmyk(61%, 10.6%, 0%, 44.7%) |
| CIE-LAB | lab(49.08, -17.44, -14.79) |
| CIE-LCH | lch(49.08, 22.86, 220.31°) |
| OKLab | oklab(55.42% -0.0616 -0.041) |
| OKLCH | oklch(55.42% 0.074 213.7) |
| XYZ | xyz(13.8422, 17.6556, 27.8725) |
| Luminance | 0.1766 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ocean
#017B92
ΔE00 3.56
Teal Blue
#01889F
ΔE00 4.66
Dirty Blue
#3F829D
ΔE00 5.52
Deep Aqua
#08787F
ΔE00 6.15
Sea Blue
#047495
ΔE00 7.33
Dark Cyan
#0A888A
ΔE00 8.17
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#377E8D #8D4637
analogous
#378D71 #377E8D #37538D
triadic
#377E8D #8D377E #7E8D37
tetradic
#377E8D #71378D #8D4637 #538D37
square
#377E8D #71378D #8D4637 #538D37
split-complementary
#377E8D #8D3753 #8D7137
monochromatic
#152F35 #265761 #377E8D #49A5B8 #75BBC9
Accessibility & contrast
On white
4.63
#377E8D on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.53
#377E8D on #000000
AA ✓AA large ✓AAA ✗
Best text color
#FFFFFF on #377E8D
4.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##377E8D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##377E8D | 1.00 | 4.63 | 4.53 | 4.63 |
| #FFFFFF | 4.63 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.53 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.63 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#737A8E
Deuteranopia (green-blind)
#66718D
Tritanopia (blue-blind)
#008483
Achromatopsia (no color)
#757575
Design tokens & code
CSS
--color: #377e8d; /* rgb */ color: rgb(55, 126, 141); /* oklch */ color: oklch(55.4% 0.074 213.7);
Tailwind
colors: {
custom: {
50: '#77a3ae',
500: '#377e8d',
950: '#000000',
},
}SCSS
$custom: #377e8d; $custom-light: #77a3ae; $custom-dark: #000000;
JSON
{
"hex": "#377e8d",
"rgb": {
"r": 55,
"g": 126,
"b": 141
},
"hsl": {
"h": 190.465,
"s": 43.878,
"l": 38.431
},
"oklch": {
"l": 0.55416,
"c": 0.07397,
"h": 213.7
},
"luminance": 0.17657
}Semantic roles & 50–950 ramp
primary
#377E8D
secondary
#B27A6E
accent
#6A54D4
background
#F7FAFA
surface
#EEF4F4
border
#C9CECE
text
#090F10
muted
#7B7F7F