#233EB0#233EB0
#233EB0 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.183 H 267.2°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).
Color values
| HEX | #233EB0 |
|---|---|
| RGB | rgb(35, 62, 176) |
| HSL | hsl(229, 67%, 41%) |
| HSV | hsv(229, 80%, 69%) |
| CMYK | cmyk(80.1%, 64.8%, 0%, 31%) |
| CIE-LAB | lab(31.66, 32.56, -63.26) |
| CIE-LCH | lch(31.66, 71.14, 297.23°) |
| OKLab | oklab(42.35% -0.0088 -0.1831) |
| OKLCH | oklch(42.35% 0.183 267.2) |
| XYZ | xyz(10.2495, 6.9360, 41.8645) |
| Luminance | 0.0694 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 1.83
Blue Blue
#2242C7
ΔE00 3.23
Cobalt
#0047AB
ΔE00 4.50
Ocean Blue
#4F42B5
ΔE00 5.55
Blueberry
#464196
ΔE00 5.88
Blue (survey)
#0343DF
ΔE00 6.02
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#233EB0 #B09523
analogous
#2385B0 #233EB0 #4F23B0
triadic
#233EB0 #B0233E #3EB023
tetradic
#233EB0 #B02385 #B09523 #23B04F
square
#233EB0 #B02385 #B09523 #23B04F
split-complementary
#233EB0 #B04F23 #85B023
monochromatic
#0F1A4A #192C7D #233EB0 #3957D8 #6C82E2
Accessibility & contrast
On white
8.80
#233EB0 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.39
#233EB0 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #233EB0
8.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##233EB0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##233EB0 | 1.00 | 8.80 | 2.39 | 8.80 |
| #FFFFFF | 8.80 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.39 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.80 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0051B4
Deuteranopia (green-blind)
#0044AE
Tritanopia (blue-blind)
#005C71
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #233eb0; /* rgb */ color: rgb(35, 62, 176); /* oklch */ color: oklch(42.4% 0.183 267.2);
Tailwind
colors: {
custom: {
50: '#7673c9',
500: '#233eb0',
950: '#000000',
},
}SCSS
$custom: #233eb0; $custom-light: #7673c9; $custom-dark: #000000;
JSON
{
"hex": "#233eb0",
"rgb": {
"r": 35,
"g": 62,
"b": 176
},
"hsl": {
"h": 228.511,
"s": 66.825,
"l": 41.373
},
"oklch": {
"l": 0.42354,
"c": 0.18332,
"h": 267.2
},
"luminance": 0.06937
}Semantic roles & 50–950 ramp
primary
#233EB0
secondary
#C8B567
accent
#C93EEA
background
#F7F6FC
surface
#EEECF8
border
#C9C7D1
text
#0A0813
muted
#7C7B82