#253BBC#253BBC
#253BBC is a dark, highly saturated blue. Relative luminance 0.072; OKLCH L 43.1% C 0.202 H 268.2°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).
Color values
| HEX | #253BBC |
|---|---|
| RGB | rgb(37, 59, 188) |
| HSL | hsl(231, 67%, 44%) |
| HSV | hsv(231, 80%, 74%) |
| CMYK | cmyk(80.3%, 68.6%, 0%, 26.3%) |
| CIE-LAB | lab(32.15, 39.05, -69.57) |
| CIE-LCH | lch(32.15, 79.78, 299.31°) |
| OKLab | oklab(43.08% -0.0063 -0.2015) |
| OKLCH | oklch(43.08% 0.202 268.2) |
| XYZ | xyz(11.4009, 7.1508, 48.3466) |
| Luminance | 0.0715 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blue Blue
#2242C7
ΔE00 2.42
Sapphire (survey)
#2138AB
ΔE00 2.50
Blue (survey)
#0343DF
ΔE00 4.85
Ocean Blue
#4F42B5
ΔE00 4.96
Blue With A Hint Of Purple
#533CC6
ΔE00 5.57
Blurple
#5539CC
ΔE00 6.17
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#253BBC #BCA625
analogous
#2587BC #253BBC #5B25BC
triadic
#253BBC #BC253B #3BBC25
tetradic
#253BBC #BC2587 #BCA625 #25BC5B
square
#253BBC #BC2587 #BCA625 #25BC5B
split-complementary
#253BBC #BC5B25 #87BC25
monochromatic
#111B56 #1B2B89 #253BBC #445ADA #7787E4
Accessibility & contrast
On white
8.64
#253BBC on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.43
#253BBC on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #253BBC
8.64:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##253BBC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##253BBC | 1.00 | 8.64 | 2.43 | 8.64 |
| #FFFFFF | 8.64 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.43 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.64 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0053C0
Deuteranopia (green-blind)
#0044BA
Tritanopia (blue-blind)
#005F77
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #253bbc; /* rgb */ color: rgb(37, 59, 188); /* oklch */ color: oklch(43.1% 0.202 268.2);
Tailwind
colors: {
custom: {
50: '#7a71d1',
500: '#253bbc',
950: '#000000',
},
}SCSS
$custom: #253bbc; $custom-light: #7a71d1; $custom-dark: #000000;
JSON
{
"hex": "#253bbc",
"rgb": {
"r": 37,
"g": 59,
"b": 188
},
"hsl": {
"h": 231.258,
"s": 67.111,
"l": 44.118
},
"oklch": {
"l": 0.43075,
"c": 0.20162,
"h": 268.2
},
"luminance": 0.07152
}Semantic roles & 50–950 ramp
primary
#253BBC
secondary
#CCBF71
accent
#D13EEA
background
#F8F6FD
surface
#EFECFA
border
#CAC7D3
text
#0B0714
muted
#7C7A83