#2B308D#2B308D
#2B308D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.151 H 273.9°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).
Color values
| HEX | #2B308D |
|---|---|
| RGB | rgb(43, 48, 141) |
| HSL | hsl(237, 53%, 36%) |
| HSV | hsv(237, 70%, 55%) |
| CMYK | cmyk(69.5%, 66%, 0%, 44.7%) |
| CIE-LAB | lab(25.41, 29.67, -52.22) |
| CIE-LCH | lch(25.41, 60.06, 299.60°) |
| OKLab | oklab(36.91% 0.0102 -0.1507) |
| OKLCH | oklch(36.91% 0.151 273.9) |
| XYZ | xyz(6.8593, 4.5500, 25.7109) |
| Luminance | 0.0455 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 4.78
Darkslateblue
#483D8B
ΔE00 5.61
Blueberry
#464196
ΔE00 5.73
Royal
#0C1793
ΔE00 6.50
Midnight Blue
#191970
ΔE00 7.05
Indigo Blue
#3A18B1
ΔE00 7.97
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2B308D #8D882B
analogous
#2B618D #2B308D #572B8D
triadic
#2B308D #8D2B30 #308D2B
tetradic
#2B308D #8D2B61 #8D882B #2B8D57
square
#2B308D #8D2B61 #8D882B #2B8D57
split-complementary
#2B308D #8D572B #618D2B
monochromatic
#0E102F #1D205E #2B308D #3940BC #6369CF
Accessibility & contrast
On white
10.99
#2B308D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.91
#2B308D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2B308D
10.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2B308D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2B308D | 1.00 | 10.99 | 1.91 | 10.99 |
| #FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.91 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004190
Deuteranopia (green-blind)
#00388B
Tritanopia (blue-blind)
#00485A
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #2b308d; /* rgb */ color: rgb(43, 48, 141); /* oklch */ color: oklch(36.9% 0.151 273.9);
Tailwind
colors: {
custom: {
50: '#7268af',
500: '#2b308d',
950: '#000000',
},
}SCSS
$custom: #2b308d; $custom-light: #7268af; $custom-dark: #000000;
JSON
{
"hex": "#2b308d",
"rgb": {
"r": 43,
"g": 48,
"b": 141
},
"hsl": {
"h": 236.939,
"s": 53.261,
"l": 36.078
},
"oklch": {
"l": 0.36907,
"c": 0.15106,
"h": 273.9
},
"luminance": 0.04551
}Semantic roles & 50–950 ramp
primary
#2B308D
secondary
#B6B15E
accent
#D54BDD
background
#F7F6FA
surface
#EDEBF5
border
#C8C6CF
text
#090610
muted
#7B7A7F