#234AB1#234AB1
#234AB1 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.8% C 0.170 H 264.6°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).
Color values
| HEX | #234AB1 |
|---|---|
| RGB | rgb(35, 74, 177) |
| HSL | hsl(224, 67%, 42%) |
| HSV | hsv(224, 80%, 69%) |
| CMYK | cmyk(80.2%, 58.2%, 0%, 30.6%) |
| CIE-LAB | lab(34.86, 25.00, -58.62) |
| CIE-LCH | lch(34.86, 63.73, 293.09°) |
| OKLab | oklab(44.76% -0.016 -0.1694) |
| OKLCH | oklch(44.76% 0.17 264.6) |
| XYZ | xyz(11.0749, 8.4279, 42.6295) |
| Luminance | 0.0843 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.24
Sapphire
#0F52BA
ΔE00 3.31
Blue Blue
#2242C7
ΔE00 4.29
Cobalt (survey)
#1E488F
ΔE00 5.01
Sapphire (survey)
#2138AB
ΔE00 5.69
Blue (survey)
#0343DF
ΔE00 6.29
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#234AB1 #B18A23
analogous
#2391B1 #234AB1 #4323B1
triadic
#234AB1 #B1234A #4AB123
tetradic
#234AB1 #B12391 #B18A23 #23B143
square
#234AB1 #B12391 #B18A23 #23B143
split-complementary
#234AB1 #B14323 #91B123
monochromatic
#0F1F4B #19357E #234AB1 #3965D8 #6C8DE2
Accessibility & contrast
On white
7.82
#234AB1 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.69
#234AB1 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #234AB1
7.82:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##234AB1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##234AB1 | 1.00 | 7.82 | 2.69 | 7.82 |
| #FFFFFF | 7.82 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.69 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.82 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0059B4
Deuteranopia (green-blind)
#004CAF
Tritanopia (blue-blind)
#006476
Achromatopsia (no color)
#525252
Design tokens & code
CSS
--color: #234ab1; /* rgb */ color: rgb(35, 74, 177); /* oklch */ color: oklch(44.8% 0.170 264.6);
Tailwind
colors: {
custom: {
50: '#767cc9',
500: '#234ab1',
950: '#000000',
},
}SCSS
$custom: #234ab1; $custom-light: #767cc9; $custom-dark: #000000;
JSON
{
"hex": "#234ab1",
"rgb": {
"r": 35,
"g": 74,
"b": 177
},
"hsl": {
"h": 223.521,
"s": 66.981,
"l": 41.569
},
"oklch": {
"l": 0.44758,
"c": 0.17013,
"h": 264.6
},
"luminance": 0.08429
}Semantic roles & 50–950 ramp
primary
#234AB1
secondary
#C8AE68
accent
#BB3EEA
background
#F7F7FC
surface
#EEEEF8
border
#C9C9D1
text
#0A0913
muted
#7C7B82