#437DAA#437DAA
#437DAA is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.0% C 0.093 H 243.9°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).
Color values
| HEX | #437DAA |
|---|---|
| RGB | rgb(67, 125, 170) |
| HSL | hsl(206, 43%, 46%) |
| HSV | hsv(206, 61%, 67%) |
| CMYK | cmyk(60.6%, 26.5%, 0%, 33.3%) |
| CIE-LAB | lab(50.41, -5.07, -29.64) |
| CIE-LCH | lch(50.41, 30.07, 260.30°) |
| OKLab | oklab(56.99% -0.0408 -0.0833) |
| OKLCH | oklch(56.99% 0.093 243.9) |
| XYZ | xyz(16.9014, 18.7612, 40.7530) |
| Luminance | 0.1876 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 2.21
Stormy Blue
#507B9C
ΔE00 2.90
Cool Blue
#4984B8
ΔE00 3.16
Dull Blue
#49759C
ΔE00 3.53
Off Blue
#5684AE
ΔE00 3.55
Nice Blue
#107AB0
ΔE00 3.88
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#437DAA #AA7043
analogous
#43AAA4 #437DAA #4349AA
triadic
#437DAA #AA437D #7DAA43
tetradic
#437DAA #A443AA #AA7043 #49AA43
square
#437DAA #A443AA #AA7043 #49AA43
split-complementary
#437DAA #AA4349 #AAA443
monochromatic
#203C52 #325D7E #437DAA #679BC3 #93B8D4
Accessibility & contrast
On white
4.42
#437DAA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.75
#437DAA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #437DAA
4.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##437DAA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##437DAA | 1.00 | 4.42 | 4.75 | 4.75 |
| #FFFFFF | 4.42 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.75 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.75 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#697EAC
Deuteranopia (green-blind)
#5B73A9
Tritanopia (blue-blind)
#00888C
Achromatopsia (no color)
#787878
Design tokens & code
CSS
--color: #437daa; /* rgb */ color: rgb(67, 125, 170); /* oklch */ color: oklch(57.0% 0.093 243.9);
Tailwind
colors: {
custom: {
50: '#80a2c3',
500: '#437daa',
950: '#000000',
},
}SCSS
$custom: #437daa; $custom-light: #80a2c3; $custom-dark: #000000;
JSON
{
"hex": "#437daa",
"rgb": {
"r": 67,
"g": 125,
"b": 170
},
"hsl": {
"h": 206.214,
"s": 43.46,
"l": 46.471
},
"oklch": {
"l": 0.56993,
"c": 0.09272,
"h": 243.9
},
"luminance": 0.18763
}Semantic roles & 50–950 ramp
primary
#437DAA
secondary
#C0A189
accent
#8C55D3
background
#F8F9FC
surface
#EFF2F8
border
#CACCD1
text
#0B0F12
muted
#7C7E81