#28404F#28404F
#28404F is a dark, muted cyan. Relative luminance 0.047; OKLCH L 35.9% C 0.040 H 236.8°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).
Color values
| HEX | #28404F |
|---|---|
| RGB | rgb(40, 64, 79) |
| HSL | hsl(203, 33%, 23%) |
| HSV | hsv(203, 49%, 31%) |
| CMYK | cmyk(49.4%, 19%, 0%, 69%) |
| CIE-LAB | lab(25.81, -4.58, -11.97) |
| CIE-LCH | lch(25.81, 12.82, 249.05°) |
| OKLab | oklab(35.85% -0.0217 -0.0331) |
| OKLCH | oklch(35.85% 0.04 236.8) |
| XYZ | xyz(4.1193, 4.6821, 8.0823) |
| Luminance | 0.0468 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Blue Grey
#1F3B4D
ΔE00 2.19
Dark Grey Blue
#29465B
ΔE00 3.12
Charcoal
#36454F
ΔE00 3.52
Dark Slate Blue
#214761
ΔE00 4.74
Gunmetal
#2A3439
ΔE00 6.49
Charcoal Grey
#3C4142
ΔE00 8.49
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#28404F #4F3728
analogous
#284F4A #28404F #282C4F
triadic
#28404F #4F2840 #404F28
tetradic
#28404F #4A284F #4F3728 #2C4F28
square
#28404F #4A284F #4F3728 #2C4F28
split-complementary
#28404F #4F282C #4F4A28
monochromatic
#0A1014 #131F26 #28404F #3D6178 #5182A0
Accessibility & contrast
On white
10.84
#28404F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.94
#28404F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #28404F
10.84:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##28404F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##28404F | 1.00 | 10.84 | 1.94 | 10.84 |
| #FFFFFF | 10.84 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.94 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.84 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#394050
Deuteranopia (green-blind)
#343B4F
Tritanopia (blue-blind)
#174445
Achromatopsia (no color)
#3D3D3D
Design tokens & code
CSS
--color: #28404f; /* rgb */ color: rgb(40, 64, 79); /* oklch */ color: oklch(35.9% 0.040 236.8);
Tailwind
colors: {
custom: {
50: '#647480',
500: '#28404f',
950: '#000000',
},
}SCSS
$custom: #28404f; $custom-light: #647480; $custom-dark: #000000;
JSON
{
"hex": "#28404f",
"rgb": {
"r": 40,
"g": 64,
"b": 79
},
"hsl": {
"h": 203.077,
"s": 32.773,
"l": 23.333
},
"oklch": {
"l": 0.3585,
"c": 0.0396,
"h": 236.8
},
"luminance": 0.04682
}Semantic roles & 50–950 ramp
primary
#28404F
secondary
#826451
accent
#885FC9
background
#F6F7F7
surface
#EBEDEE
border
#C6C8C9
text
#05080A
muted
#7A7B7C