#233B7C#233B7C
#233B7C is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.2% C 0.114 H 265.8°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).
Color values
| HEX | #233B7C |
|---|---|
| RGB | rgb(35, 59, 124) |
| HSL | hsl(224, 56%, 31%) |
| HSV | hsv(224, 72%, 49%) |
| CMYK | cmyk(71.8%, 52.4%, 0%, 51.4%) |
| CIE-LAB | lab(26.56, 14.45, -39.75) |
| CIE-LCH | lch(26.56, 42.29, 289.97°) |
| OKLab | oklab(37.21% -0.0084 -0.1141) |
| OKLCH | oklch(37.21% 0.114 265.8) |
| XYZ | xyz(5.8939, 4.9399, 19.7078) |
| Luminance | 0.0494 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Darkish Blue
#014182
ΔE00 4.53
Marine Blue
#01386A
ΔE00 4.94
Cobalt (survey)
#1E488F
ΔE00 5.06
Twilight Blue
#0A437A
ΔE00 5.32
Marine
#042E60
ΔE00 5.72
Prussian Blue
#004577
ΔE00 6.94
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#233B7C #7C6423
analogous
#23677C #233B7C #37237C
triadic
#233B7C #7C233B #3B7C23
tetradic
#233B7C #7C2367 #7C6423 #237C37
square
#233B7C #7C2367 #7C6423 #237C37
split-complementary
#233B7C #7C3723 #677C23
monochromatic
#080E1D #16244C #233B7C #3052AC #4D6FCD
Accessibility & contrast
On white
10.56
#233B7C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.99
#233B7C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #233B7C
10.56:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##233B7C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##233B7C | 1.00 | 10.56 | 1.99 | 10.56 |
| #FFFFFF | 10.56 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.56 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#15437E
Deuteranopia (green-blind)
#003B7B
Tritanopia (blue-blind)
#004A55
Achromatopsia (no color)
#3F3F3F
Design tokens & code
CSS
--color: #233b7c; /* rgb */ color: rgb(35, 59, 124); /* oklch */ color: oklch(37.2% 0.114 265.8);
Tailwind
colors: {
custom: {
50: '#6a70a2',
500: '#233b7c',
950: '#000000',
},
}SCSS
$custom: #233b7c; $custom-light: #6a70a2; $custom-dark: #000000;
JSON
{
"hex": "#233b7c",
"rgb": {
"r": 35,
"g": 59,
"b": 124
},
"hsl": {
"h": 223.82,
"s": 55.975,
"l": 31.176
},
"oklch": {
"l": 0.37208,
"c": 0.11443,
"h": 265.8
},
"luminance": 0.0494
}Semantic roles & 50–950 ramp
primary
#233B7C
secondary
#AF944C
accent
#B749DF
background
#F6F6FA
surface
#ECECF4
border
#C7C7CE
text
#07070F
muted
#7A7A7F