#2427B1#2427B1
#2427B1 is a dark, highly saturated blue. Relative luminance 0.050; OKLCH L 38.8% C 0.208 H 270.5°. Best body text is #FFFFFF at 10.50:1 contrast (WCAG AA passes).
Color values
| HEX | #2427B1 |
|---|---|
| RGB | rgb(36, 39, 177) |
| HSL | hsl(239, 66%, 42%) |
| HSV | hsv(239, 80%, 69%) |
| CMYK | cmyk(79.7%, 78%, 0%, 30.6%) |
| CIE-LAB | lab(26.73, 46.92, -71.98) |
| CIE-LCH | lch(26.73, 85.92, 303.10°) |
| OKLab | oklab(38.85% 0.0018 -0.2084) |
| OKLCH | oklch(38.85% 0.208 270.5) |
| XYZ | xyz(9.3862, 4.9994, 42.0567) |
| Luminance | 0.0500 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 3.47
True Blue
#010FCC
ΔE00 4.44
Sapphire (survey)
#2138AB
ΔE00 4.71
Cobalt Blue
#030AA7
ΔE00 5.31
Mediumblue
#0000CD
ΔE00 5.33
Ultramarine
#2000B1
ΔE00 5.35
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2427B1 #B1AE24
analogous
#246EB1 #2427B1 #6724B1
triadic
#2427B1 #B12427 #27B124
tetradic
#2427B1 #B1246E #B1AE24 #24B167
square
#2427B1 #B1246E #B1AE24 #24B167
split-complementary
#2427B1 #B16724 #6EB124
monochromatic
#0F114B #1A1C7E #2427B1 #3B3ED7 #6E70E1
Accessibility & contrast
On white
10.50
#2427B1 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.00
#2427B1 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2427B1
10.50:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2427B1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2427B1 | 1.00 | 10.50 | 2.00 | 10.50 |
| #FFFFFF | 10.50 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.00 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.50 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0046B5
Deuteranopia (green-blind)
#0038AF
Tritanopia (blue-blind)
#00516B
Achromatopsia (no color)
#3F3F3F
Design tokens & code
CSS
--color: #2427b1; /* rgb */ color: rgb(36, 39, 177); /* oklch */ color: oklch(38.8% 0.208 270.5);
Tailwind
colors: {
custom: {
50: '#7964ca',
500: '#2427b1',
950: '#000000',
},
}SCSS
$custom: #2427b1; $custom-light: #7964ca; $custom-dark: #000000;
JSON
{
"hex": "#2427b1",
"rgb": {
"r": 36,
"g": 39,
"b": 177
},
"hsl": {
"h": 238.723,
"s": 66.197,
"l": 41.765
},
"oklch": {
"l": 0.38847,
"c": 0.20845,
"h": 270.5
},
"luminance": 0.05
}Semantic roles & 50–950 ramp
primary
#2427B1
secondary
#C8C669
accent
#E53FE9
background
#F8F6FC
surface
#EFEBF9
border
#CAC6D2
text
#0B0513
muted
#7C7A82