#2533A0#2533A0
#2533A0 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.9% C 0.175 H 270.0°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).
Color values
| HEX | #2533A0 |
|---|---|
| RGB | rgb(37, 51, 160) |
| HSL | hsl(233, 62%, 39%) |
| HSV | hsv(233, 77%, 63%) |
| CMYK | cmyk(76.9%, 68.1%, 0%, 37.3%) |
| CIE-LAB | lab(27.57, 33.95, -60.35) |
| CIE-LCH | lch(27.57, 69.24, 299.36°) |
| OKLab | oklab(38.93% 0 -0.1746) |
| OKLCH | oklch(38.93% 0.175 270) |
| XYZ | xyz(8.2898, 5.2981, 33.8366) |
| Luminance | 0.0530 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.03
Blueberry
#464196
ΔE00 5.81
Blue Blue
#2242C7
ΔE00 6.53
Darkslateblue
#483D8B
ΔE00 6.70
Ocean Blue
#4F42B5
ΔE00 6.93
Royal
#0C1793
ΔE00 7.02
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2533A0 #A09225
analogous
#2570A0 #2533A0 #5425A0
triadic
#2533A0 #A02533 #33A025
tetradic
#2533A0 #A02570 #A09225 #25A054
square
#2533A0 #A02570 #A09225 #25A054
split-complementary
#2533A0 #A05425 #70A025
monochromatic
#0E133D #1A236E #2533A0 #3244D0 #6472DB
Accessibility & contrast
On white
10.20
#2533A0 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.06
#2533A0 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2533A0
10.20:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2533A0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2533A0 | 1.00 | 10.20 | 2.06 | 10.20 |
| #FFFFFF | 10.20 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.06 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.20 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0047A3
Deuteranopia (green-blind)
#003B9E
Tritanopia (blue-blind)
#005165
Achromatopsia (no color)
#414141
Design tokens & code
CSS
--color: #2533a0; /* rgb */ color: rgb(37, 51, 160); /* oklch */ color: oklch(38.9% 0.175 270.0);
Tailwind
colors: {
custom: {
50: '#746bbd',
500: '#2533a0',
950: '#000000',
},
}SCSS
$custom: #2533a0; $custom-light: #746bbd; $custom-dark: #000000;
JSON
{
"hex": "#2533a0",
"rgb": {
"r": 37,
"g": 51,
"b": 160
},
"hsl": {
"h": 233.171,
"s": 62.437,
"l": 38.627
},
"oklch": {
"l": 0.38928,
"c": 0.17464,
"h": 270
},
"luminance": 0.05299
}Semantic roles & 50–950 ramp
primary
#2533A0
secondary
#C1B660
accent
#D342E6
background
#F7F6FB
surface
#EEEBF7
border
#C9C6D0
text
#0A0612
muted
#7C7A81