#377DAF#377DAF
#377DAF is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.8% C 0.104 H 242.8°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).
Color values
| HEX | #377DAF |
|---|---|
| RGB | rgb(55, 125, 175) |
| HSL | hsl(205, 52%, 45%) |
| HSV | hsv(205, 69%, 69%) |
| CMYK | cmyk(68.6%, 28.6%, 0%, 31.4%) |
| CIE-LAB | lab(50.18, -5.54, -32.92) |
| CIE-LCH | lch(50.18, 33.38, 260.44°) |
| OKLab | oklab(56.77% -0.0477 -0.0929) |
| OKLCH | oklch(56.77% 0.104 242.8) |
| XYZ | xyz(16.6441, 18.5728, 43.2569) |
| Luminance | 0.1857 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 2.57
Nice Blue
#107AB0
ΔE00 2.73
Cool Blue
#4984B8
ΔE00 3.52
Bluish
#2976BB
ΔE00 3.66
Stormy Blue
#507B9C
ΔE00 4.05
Windows Blue
#3778BF
ΔE00 4.09
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#377DAF #AF6937
analogous
#37AFA5 #377DAF #3741AF
triadic
#377DAF #AF377D #7DAF37
tetradic
#377DAF #A537AF #AF6937 #41AF37
square
#377DAF #A537AF #AF6937 #41AF37
split-complementary
#377DAF #AF3741 #AFA537
monochromatic
#1A3A52 #285C80 #377DAF #599BCB #87B7D9
Accessibility & contrast
On white
4.45
#377DAF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.72
#377DAF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #377DAF
4.72:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##377DAF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##377DAF | 1.00 | 4.45 | 4.72 | 4.72 |
| #FFFFFF | 4.45 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.72 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.72 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#667EB1
Deuteranopia (green-blind)
#5672AE
Tritanopia (blue-blind)
#00898E
Achromatopsia (no color)
#777777
Design tokens & code
CSS
--color: #377daf; /* rgb */ color: rgb(55, 125, 175); /* oklch */ color: oklch(56.8% 0.104 242.8);
Tailwind
colors: {
custom: {
50: '#7ba2c7',
500: '#377daf',
950: '#000000',
},
}SCSS
$custom: #377daf; $custom-light: #7ba2c7; $custom-dark: #000000;
JSON
{
"hex": "#377daf",
"rgb": {
"r": 55,
"g": 125,
"b": 175
},
"hsl": {
"h": 205,
"s": 52.174,
"l": 45.098
},
"oklch": {
"l": 0.56766,
"c": 0.10442,
"h": 242.8
},
"luminance": 0.18575
}Semantic roles & 50–950 ramp
primary
#377DAF
secondary
#C39B7F
accent
#884CDC
background
#F8F9FC
surface
#EFF2F8
border
#CACCD1
text
#0A0F13
muted
#7C7E82