#427BAE#427BAE
#427BAE is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.7% C 0.100 H 247.5°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).
Color values
| HEX | #427BAE |
|---|---|
| RGB | rgb(66, 123, 174) |
| HSL | hsl(208, 45%, 47%) |
| HSV | hsv(208, 62%, 68%) |
| CMYK | cmyk(62.1%, 29.3%, 0%, 31.8%) |
| CIE-LAB | lab(49.95, -2.75, -32.67) |
| CIE-LCH | lch(49.95, 32.79, 265.19°) |
| OKLab | oklab(56.68% -0.0381 -0.0921) |
| OKLCH | oklch(56.68% 0.1 247.5) |
| XYZ | xyz(16.9669, 18.3786, 42.6895) |
| Luminance | 0.1838 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 2.49
Steel Blue
#4682B4
ΔE00 2.65
Bluish
#2976BB
ΔE00 2.78
Flat Blue
#3C73A8
ΔE00 3.04
Dull Blue
#49759C
ΔE00 3.26
Cool Blue
#4984B8
ΔE00 3.42
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#427BAE #AE7542
analogous
#42AEAB #427BAE #4245AE
triadic
#427BAE #AE427B #7BAE42
tetradic
#427BAE #AB42AE #AE7542 #45AE42
square
#427BAE #AB42AE #AE7542 #45AE42
split-complementary
#427BAE #AE4245 #AEAB42
monochromatic
#203C55 #315C82 #427BAE #6899C6 #94B7D6
Accessibility & contrast
On white
4.49
#427BAE on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.68
#427BAE on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #427BAE
4.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##427BAE | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##427BAE | 1.00 | 4.49 | 4.68 | 4.68 |
| #FFFFFF | 4.49 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.68 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.68 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#657DB0
Deuteranopia (green-blind)
#5672AD
Tritanopia (blue-blind)
#00878D
Achromatopsia (no color)
#777777
Design tokens & code
CSS
--color: #427bae; /* rgb */ color: rgb(66, 123, 174); /* oklch */ color: oklch(56.7% 0.100 247.5);
Tailwind
colors: {
custom: {
50: '#80a1c6',
500: '#427bae',
950: '#000000',
},
}SCSS
$custom: #427bae; $custom-light: #80a1c6; $custom-dark: #000000;
JSON
{
"hex": "#427bae",
"rgb": {
"r": 66,
"g": 123,
"b": 174
},
"hsl": {
"h": 208.333,
"s": 45,
"l": 47.059
},
"oklch": {
"l": 0.56683,
"c": 0.09961,
"h": 247.5
},
"luminance": 0.1838
}Semantic roles & 50–950 ramp
primary
#427BAE
secondary
#C2A48A
accent
#9053D5
background
#F8F9FC
surface
#EFF2F8
border
#CACCD1
text
#0B0E13
muted
#7C7E82