#337CAC#337CAC
#337CAC is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.2% C 0.103 H 241.0°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).
Color values
| HEX | #337CAC |
|---|---|
| RGB | rgb(51, 124, 172) |
| HSL | hsl(204, 54%, 44%) |
| HSV | hsv(204, 70%, 67%) |
| CMYK | cmyk(70.3%, 27.9%, 0%, 32.5%) |
| CIE-LAB | lab(49.61, -6.64, -32.08) |
| CIE-LCH | lch(49.61, 32.76, 258.31°) |
| OKLab | oklab(56.23% -0.0502 -0.0905) |
| OKLCH | oklch(56.23% 0.103 241) |
| XYZ | xyz(16.0164, 18.0959, 41.6705) |
| Luminance | 0.1810 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Nice Blue
#107AB0
ΔE00 2.06
Steel Blue
#4682B4
ΔE00 3.38
Cerulean
#007BA7
ΔE00 4.00
Bluish
#2976BB
ΔE00 4.05
Stormy Blue
#507B9C
ΔE00 4.06
Cool Blue
#4984B8
ΔE00 4.34
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#337CAC #AC6333
analogous
#33AC9F #337CAC #333FAC
triadic
#337CAC #AC337C #7CAC33
tetradic
#337CAC #9F33AC #AC6333 #3FAC33
square
#337CAC #9F33AC #AC6333 #3FAC33
split-complementary
#337CAC #AC333F #AC9F33
monochromatic
#17384E #255A7D #337CAC #519BCB #80B6D9
Accessibility & contrast
On white
4.55
#337CAC on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.62
#337CAC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #337CAC
4.62:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##337CAC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##337CAC | 1.00 | 4.55 | 4.62 | 4.62 |
| #FFFFFF | 4.55 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.62 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.62 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#667CAE
Deuteranopia (green-blind)
#5571AB
Tritanopia (blue-blind)
#00888D
Achromatopsia (no color)
#767676
Design tokens & code
CSS
--color: #337cac; /* rgb */ color: rgb(51, 124, 172); /* oklch */ color: oklch(56.2% 0.103 241.0);
Tailwind
colors: {
custom: {
50: '#79a1c5',
500: '#337cac',
950: '#000000',
},
}SCSS
$custom: #337cac; $custom-light: #79a1c5; $custom-dark: #000000;
JSON
{
"hex": "#337cac",
"rgb": {
"r": 51,
"g": 124,
"b": 172
},
"hsl": {
"h": 203.802,
"s": 54.26,
"l": 43.725
},
"oklch": {
"l": 0.56232,
"c": 0.10349,
"h": 241
},
"luminance": 0.18098
}Semantic roles & 50–950 ramp
primary
#337CAC
secondary
#C29678
accent
#854ADE
background
#F7F9FC
surface
#EEF2F8
border
#C9CCD1
text
#0A0F13
muted
#7C7E82