#2523B2#2523B2
#2523B2 is a dark, highly saturated blue. Relative luminance 0.048; OKLCH L 38.5% C 0.213 H 271.0°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).
Color values
| HEX | #2523B2 |
|---|---|
| RGB | rgb(37, 35, 178) |
| HSL | hsl(241, 67%, 42%) |
| HSV | hsv(241, 80%, 70%) |
| CMYK | cmyk(79.2%, 80.3%, 0%, 30.2%) |
| CIE-LAB | lab(26.18, 49.38, -73.49) |
| CIE-LCH | lch(26.18, 88.53, 303.90°) |
| OKLab | oklab(38.51% 0.0038 -0.2127) |
| OKLCH | oklch(38.51% 0.213 271) |
| XYZ | xyz(9.3971, 4.8087, 42.5438) |
| Luminance | 0.0481 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 2.73
True Blue
#010FCC
ΔE00 3.80
Ultramarine
#2000B1
ΔE00 4.50
Mediumblue
#0000CD
ΔE00 4.61
Cobalt Blue
#030AA7
ΔE00 4.62
Royal Blue (survey)
#0504AA
ΔE00 4.90
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2523B2 #B0B223
analogous
#2369B2 #2523B2 #6D23B2
triadic
#2523B2 #B22523 #23B225
tetradic
#2523B2 #B22369 #B0B223 #23B26D
square
#2523B2 #B22369 #B0B223 #23B26D
split-complementary
#2523B2 #B26D23 #69B223
monochromatic
#100F4C #1A197F #2523B2 #3C3AD8 #6F6DE2
Accessibility & contrast
On white
10.70
#2523B2 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.96
#2523B2 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2523B2
10.70:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2523B2 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2523B2 | 1.00 | 10.70 | 1.96 | 10.70 |
| #FFFFFF | 10.70 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.96 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.70 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0045B6
Deuteranopia (green-blind)
#0037B0
Tritanopia (blue-blind)
#00506B
Achromatopsia (no color)
#3E3E3E
Design tokens & code
CSS
--color: #2523b2; /* rgb */ color: rgb(37, 35, 178); /* oklch */ color: oklch(38.5% 0.213 271.0);
Tailwind
colors: {
custom: {
50: '#7a61ca',
500: '#2523b2',
950: '#000000',
},
}SCSS
$custom: #2523b2; $custom-light: #7a61ca; $custom-dark: #000000;
JSON
{
"hex": "#2523b2",
"rgb": {
"r": 37,
"g": 35,
"b": 178
},
"hsl": {
"h": 240.839,
"s": 67.136,
"l": 41.765
},
"oklch": {
"l": 0.38509,
"c": 0.21277,
"h": 271
},
"luminance": 0.0481
}Semantic roles & 50–950 ramp
primary
#2523B2
secondary
#C7C968
accent
#EA3EE8
background
#F8F5FC
surface
#EFEAF9
border
#CAC6D2
text
#0B0513
muted
#7C7982