#2B5181#2B5181
#2B5181 is a dark, moderate cyan. Relative luminance 0.080; OKLCH L 43.1% C 0.091 H 255.2°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).
Color values
| HEX | #2B5181 |
|---|---|
| RGB | rgb(43, 81, 129) |
| HSL | hsl(213, 50%, 34%) |
| HSV | hsv(213, 67%, 51%) |
| CMYK | cmyk(66.7%, 37.2%, 0%, 49.4%) |
| CIE-LAB | lab(33.95, 2.91, -31.05) |
| CIE-LCH | lch(33.95, 31.18, 275.36°) |
| OKLab | oklab(43.11% -0.0233 -0.0881) |
| OKLCH | oklch(43.11% 0.091 255.2) |
| XYZ | xyz(7.8997, 7.9827, 21.8891) |
| Luminance | 0.0798 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusk Blue
#26538D
ΔE00 1.69
Light Navy
#155084
ΔE00 2.58
Light Navy Blue
#2E5A88
ΔE00 3.26
Cobalt (survey)
#1E488F
ΔE00 3.77
Denim Blue
#3B5B92
ΔE00 4.20
Twilight Blue
#0A437A
ΔE00 4.78
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2B5181 #815B2B
analogous
#2B7C81 #2B5181 #302B81
triadic
#2B5181 #812B51 #51812B
tetradic
#2B5181 #812B7C #815B2B #2B8130
square
#2B5181 #812B7C #815B2B #2B8130
split-complementary
#2B5181 #81302B #7C812B
monochromatic
#0C1725 #1C3453 #2B5181 #3A6EAF #5D8DC9
Accessibility & contrast
On white
8.09
#2B5181 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.60
#2B5181 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2B5181
8.09:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2B5181 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2B5181 | 1.00 | 8.09 | 2.60 | 8.09 |
| #FFFFFF | 8.09 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.60 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.09 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3C5483
Deuteranopia (green-blind)
#304C80
Tritanopia (blue-blind)
#005C63
Achromatopsia (no color)
#505050
Design tokens & code
CSS
--color: #2b5181; /* rgb */ color: rgb(43, 81, 129); /* oklch */ color: oklch(43.1% 0.091 255.2);
Tailwind
colors: {
custom: {
50: '#6e81a6',
500: '#2b5181',
950: '#000000',
},
}SCSS
$custom: #2b5181; $custom-light: #6e81a6; $custom-dark: #000000;
JSON
{
"hex": "#2b5181",
"rgb": {
"r": 43,
"g": 81,
"b": 129
},
"hsl": {
"h": 213.488,
"s": 50,
"l": 33.725
},
"oklch": {
"l": 0.43109,
"c": 0.09111,
"h": 255.2
},
"luminance": 0.07983
}Semantic roles & 50–950 ramp
primary
#2B5181
secondary
#AF8959
accent
#9C4EDA
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#080A0F
muted
#7B7C7F