#2637BD#2637BD
#2637BD is a dark, highly saturated blue. Relative luminance 0.068; OKLCH L 42.6% C 0.207 H 268.9°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).
Color values
| HEX | #2637BD |
|---|---|
| RGB | rgb(38, 55, 189) |
| HSL | hsl(233, 67%, 45%) |
| HSV | hsv(233, 80%, 74%) |
| CMYK | cmyk(79.9%, 70.9%, 0%, 25.9%) |
| CIE-LAB | lab(31.39, 41.95, -71.41) |
| CIE-LCH | lch(31.39, 82.82, 300.43°) |
| OKLab | oklab(42.57% -0.0038 -0.2069) |
| OKLCH | oklch(42.57% 0.207 268.9) |
| XYZ | xyz(11.3477, 6.8173, 48.8520) |
| Luminance | 0.0682 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.69
Blue Blue
#2242C7
ΔE00 3.35
Ocean Blue
#4F42B5
ΔE00 5.17
Blue With A Hint Of Purple
#533CC6
ΔE00 5.36
Blue (survey)
#0343DF
ΔE00 5.37
Blurple
#5539CC
ΔE00 5.83
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2637BD #BDAC26
analogous
#2683BD #2637BD #6126BD
triadic
#2637BD #BD2637 #37BD26
tetradic
#2637BD #BD2683 #BDAC26 #26BD61
square
#2637BD #BD2683 #BDAC26 #26BD61
split-complementary
#2637BD #BD6126 #83BD26
monochromatic
#121957 #1C288A #2637BD #4657DA #7985E4
Accessibility & contrast
On white
8.88
#2637BD on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.36
#2637BD on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2637BD
8.88:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2637BD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2637BD | 1.00 | 8.88 | 2.36 | 8.88 |
| #FFFFFF | 8.88 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.36 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.88 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0051C1
Deuteranopia (green-blind)
#0042BB
Tritanopia (blue-blind)
#005D76
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #2637bd; /* rgb */ color: rgb(38, 55, 189); /* oklch */ color: oklch(42.6% 0.207 268.9);
Tailwind
colors: {
custom: {
50: '#7b6ed2',
500: '#2637bd',
950: '#000000',
},
}SCSS
$custom: #2637bd; $custom-light: #7b6ed2; $custom-dark: #000000;
JSON
{
"hex": "#2637bd",
"rgb": {
"r": 38,
"g": 55,
"b": 189
},
"hsl": {
"h": 233.245,
"s": 66.52,
"l": 44.51
},
"oklch": {
"l": 0.42567,
"c": 0.20691,
"h": 268.9
},
"luminance": 0.06819
}Semantic roles & 50–950 ramp
primary
#2637BD
secondary
#CCC273
accent
#D63EE9
background
#F8F6FD
surface
#EFECFA
border
#CAC7D3
text
#0B0714
muted
#7C7A83