#2A51A3#2A51A3
#2A51A3 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.4% C 0.140 H 262.9°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).
Color values
| HEX | #2A51A3 |
|---|---|
| RGB | rgb(42, 81, 163) |
| HSL | hsl(221, 59%, 40%) |
| HSV | hsv(221, 74%, 64%) |
| CMYK | cmyk(74.2%, 50.3%, 0%, 36.1%) |
| CIE-LAB | lab(36.02, 15.72, -48.38) |
| CIE-LCH | lch(36.02, 50.87, 288.00°) |
| OKLab | oklab(45.39% -0.0173 -0.139) |
| OKLCH | oklch(45.39% 0.14 262.9) |
| XYZ | xyz(10.5058, 9.0203, 35.8306) |
| Luminance | 0.0902 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire
#0F52BA
ΔE00 3.01
Cobalt
#0047AB
ΔE00 3.58
Dusk Blue
#26538D
ΔE00 3.60
Cobalt (survey)
#1E488F
ΔE00 3.81
Denim Blue
#3B5B92
ΔE00 4.19
Light Navy Blue
#2E5A88
ΔE00 5.22
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2A51A3 #A37C2A
analogous
#2A8DA3 #2A51A3 #3F2AA3
triadic
#2A51A3 #A32A51 #51A32A
tetradic
#2A51A3 #A32A8D #A37C2A #2AA33F
square
#2A51A3 #A32A8D #A37C2A #2AA33F
split-complementary
#2A51A3 #A33F2A #8DA32A
monochromatic
#112142 #1D3972 #2A51A3 #3D6CCD #6E91DA
Accessibility & contrast
On white
7.49
#2A51A3 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.80
#2A51A3 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2A51A3
7.49:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2A51A3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2A51A3 | 1.00 | 7.49 | 2.80 | 7.49 |
| #FFFFFF | 7.49 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.80 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.49 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#215BA6
Deuteranopia (green-blind)
#004FA1
Tritanopia (blue-blind)
#006572
Achromatopsia (no color)
#555555
Design tokens & code
CSS
--color: #2a51a3; /* rgb */ color: rgb(42, 81, 163); /* oklch */ color: oklch(45.4% 0.140 262.9);
Tailwind
colors: {
custom: {
50: '#7481bf',
500: '#2a51a3',
950: '#000000',
},
}SCSS
$custom: #2a51a3; $custom-light: #7481bf; $custom-dark: #000000;
JSON
{
"hex": "#2a51a3",
"rgb": {
"r": 42,
"g": 81,
"b": 163
},
"hsl": {
"h": 220.661,
"s": 59.024,
"l": 40.196
},
"oklch": {
"l": 0.45385,
"c": 0.14008,
"h": 262.9
},
"luminance": 0.09021
}Semantic roles & 50–950 ramp
primary
#2A51A3
secondary
#C0A468
accent
#B046E2
background
#F7F7FB
surface
#EEEEF7
border
#C9C9D0
text
#090A12
muted
#7B7C81