#2553B2#2553B2
#2553B2 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.8% C 0.160 H 262.5°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).
Color values
| HEX | #2553B2 |
|---|---|
| RGB | rgb(37, 83, 178) |
| HSL | hsl(220, 66%, 42%) |
| HSV | hsv(220, 79%, 70%) |
| CMYK | cmyk(79.2%, 53.4%, 0%, 30.2%) |
| CIE-LAB | lab(37.47, 19.59, -54.97) |
| CIE-LCH | lch(37.47, 58.36, 289.62°) |
| OKLab | oklab(46.77% -0.0208 -0.1584) |
| OKLCH | oklch(46.77% 0.16 262.5) |
| XYZ | xyz(11.8892, 9.7928, 43.3744) |
| Luminance | 0.0979 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire
#0F52BA
ΔE00 1.32
Cobalt
#0047AB
ΔE00 3.96
Dusk Blue
#26538D
ΔE00 4.96
Denim Blue
#3B5B92
ΔE00 5.01
Denim
#1560BD
ΔE00 5.10
Cobalt (survey)
#1E488F
ΔE00 5.56
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2553B2 #B28425
analogous
#2599B2 #2553B2 #3E25B2
triadic
#2553B2 #B22553 #53B225
tetradic
#2553B2 #B22599 #B28425 #25B23E
square
#2553B2 #B22599 #B28425 #25B23E
split-complementary
#2553B2 #B23E25 #99B225
monochromatic
#10244D #1A3B7F #2553B2 #3D6FD7 #7095E1
Accessibility & contrast
On white
7.10
#2553B2 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.96
#2553B2 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2553B2
7.10:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2553B2 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2553B2 | 1.00 | 7.10 | 2.96 | 7.10 |
| #FFFFFF | 7.10 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.96 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.10 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#095FB5
Deuteranopia (green-blind)
#0052B0
Tritanopia (blue-blind)
#006A7A
Achromatopsia (no color)
#585858
Design tokens & code
CSS
--color: #2553b2; /* rgb */ color: rgb(37, 83, 178); /* oklch */ color: oklch(46.8% 0.160 262.5);
Tailwind
colors: {
custom: {
50: '#7682ca',
500: '#2553b2',
950: '#000000',
},
}SCSS
$custom: #2553b2; $custom-light: #7682ca; $custom-dark: #000000;
JSON
{
"hex": "#2553b2",
"rgb": {
"r": 37,
"g": 83,
"b": 178
},
"hsl": {
"h": 220.426,
"s": 65.581,
"l": 42.157
},
"oklch": {
"l": 0.46772,
"c": 0.15981,
"h": 262.5
},
"luminance": 0.09794
}Semantic roles & 50–950 ramp
primary
#2553B2
secondary
#C8AA6B
accent
#B13FE9
background
#F7F7FC
surface
#EEEEF8
border
#C9C9D1
text
#0A0A13
muted
#7C7C82