#437CC3#437CC3
#437CC3 is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.1% C 0.125 H 255.0°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).
Color values
| HEX | #437CC3 |
|---|---|
| RGB | rgb(67, 124, 195) |
| HSL | hsl(213, 52%, 51%) |
| HSV | hsv(213, 66%, 76%) |
| CMYK | cmyk(65.6%, 36.4%, 0%, 23.5%) |
| CIE-LAB | lab(51.32, 4.06, -42.60) |
| CIE-LCH | lch(51.32, 42.79, 275.44°) |
| OKLab | oklab(58.11% -0.0324 -0.121) |
| OKLCH | oklch(58.11% 0.125 255) |
| XYZ | xyz(19.3691, 19.5468, 54.3713) |
| Luminance | 0.1955 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 2.01
Cool Blue
#4984B8
ΔE00 3.70
Steel Blue
#4682B4
ΔE00 3.70
Bluish
#2976BB
ΔE00 3.75
Off Blue
#5684AE
ΔE00 4.34
Flat Blue
#3C73A8
ΔE00 4.72
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#437CC3 #C38A43
analogous
#43BCC3 #437CC3 #4A43C3
triadic
#437CC3 #C3437C #7CC343
tetradic
#437CC3 #C343BC #C38A43 #43C34A
square
#437CC3 #C343BC #C38A43 #43C34A
split-complementary
#437CC3 #C34A43 #BCC343
monochromatic
#22426A #315F98 #437CC3 #719CD2 #A0BDE1
Accessibility & contrast
On white
4.28
#437CC3 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.91
#437CC3 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #437CC3
4.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##437CC3 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##437CC3 | 1.00 | 4.28 | 4.91 | 4.91 |
| #FFFFFF | 4.28 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.91 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.91 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5D81C6
Deuteranopia (green-blind)
#4B75C2
Tritanopia (blue-blind)
#008C96
Achromatopsia (no color)
#7A7A7A
Design tokens & code
CSS
--color: #437cc3; /* rgb */ color: rgb(67, 124, 195); /* oklch */ color: oklch(58.1% 0.125 255.0);
Tailwind
colors: {
custom: {
50: '#84a1d5',
500: '#437cc3',
950: '#000000',
},
}SCSS
$custom: #437cc3; $custom-light: #84a1d5; $custom-dark: #000000;
JSON
{
"hex": "#437cc3",
"rgb": {
"r": 67,
"g": 124,
"b": 195
},
"hsl": {
"h": 213.281,
"s": 51.613,
"l": 51.373
},
"oklch": {
"l": 0.58107,
"c": 0.12523,
"h": 255
},
"luminance": 0.19549
}Semantic roles & 50–950 ramp
primary
#437CC3
secondary
#CDB495
accent
#9C4DDB
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0C0E14
muted
#7D7E83