#233EB4#233EB4
#233EB4 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.189 H 267.3°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).
Color values
| HEX | #233EB4 |
|---|---|
| RGB | rgb(35, 62, 180) |
| HSL | hsl(229, 67%, 42%) |
| HSV | hsv(229, 81%, 71%) |
| CMYK | cmyk(80.6%, 65.6%, 0%, 29.4%) |
| CIE-LAB | lab(32.03, 34.05, -65.04) |
| CIE-LCH | lch(32.03, 73.41, 297.63°) |
| OKLab | oklab(42.74% -0.009 -0.1883) |
| OKLCH | oklch(42.74% 0.189 267.3) |
| XYZ | xyz(10.6511, 7.0966, 43.9796) |
| Luminance | 0.0710 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.04
Blue Blue
#2242C7
ΔE00 2.72
Cobalt
#0047AB
ΔE00 4.76
Ocean Blue
#4F42B5
ΔE00 5.33
Blue (survey)
#0343DF
ΔE00 5.50
Blueberry
#464196
ΔE00 6.16
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#233EB4 #B49923
analogous
#2386B4 #233EB4 #5123B4
triadic
#233EB4 #B4233E #3EB423
tetradic
#233EB4 #B42386 #B49923 #23B451
square
#233EB4 #B42386 #B49923 #23B451
split-complementary
#233EB4 #B45123 #86B423
monochromatic
#0F1B4E #192C81 #233EB4 #3B59D9 #6E84E3
Accessibility & contrast
On white
8.68
#233EB4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.42
#233EB4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #233EB4
8.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##233EB4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##233EB4 | 1.00 | 8.68 | 2.42 | 8.68 |
| #FFFFFF | 8.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.42 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0052B8
Deuteranopia (green-blind)
#0045B2
Tritanopia (blue-blind)
#005E73
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #233eb4; /* rgb */ color: rgb(35, 62, 180); /* oklch */ color: oklch(42.7% 0.189 267.3);
Tailwind
colors: {
custom: {
50: '#7773cc',
500: '#233eb4',
950: '#000000',
},
}SCSS
$custom: #233eb4; $custom-light: #7773cc; $custom-dark: #000000;
JSON
{
"hex": "#233eb4",
"rgb": {
"r": 35,
"g": 62,
"b": 180
},
"hsl": {
"h": 228.828,
"s": 67.442,
"l": 42.157
},
"oklch": {
"l": 0.42735,
"c": 0.18852,
"h": 267.3
},
"luminance": 0.07098
}Semantic roles & 50–950 ramp
primary
#233EB4
secondary
#C9B869
accent
#CA3DEA
background
#F8F6FC
surface
#EFECF9
border
#CAC7D2
text
#0A0813
muted
#7C7B82