#233F5D#233F5D
#233F5D is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.0% C 0.063 H 251.4°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).
Color values
| HEX | #233F5D |
|---|---|
| RGB | rgb(35, 63, 93) |
| HSL | hsl(211, 45%, 25%) |
| HSV | hsv(211, 62%, 36%) |
| CMYK | cmyk(62.4%, 32.3%, 0%, 63.5%) |
| CIE-LAB | lab(25.87, -0.32, -21.04) |
| CIE-LCH | lch(25.87, 21.04, 269.13°) |
| OKLab | oklab(36.04% -0.0199 -0.0592) |
| OKLCH | oklch(36.04% 0.063 251.4) |
| XYZ | xyz(4.4457, 4.7023, 11.0271) |
| Luminance | 0.0470 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Marine Blue
#01386A
ΔE00 4.56
Dark Slate Blue
#214761
ΔE00 4.61
Dark Grey Blue
#29465B
ΔE00 4.94
Twilight Blue
#0A437A
ΔE00 5.01
Prussian Blue
#004577
ΔE00 5.15
Darkish Blue
#014182
ΔE00 5.71
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#233F5D #5D4123
analogous
#235C5D #233F5D #24235D
triadic
#233F5D #5D233F #3F5D23
tetradic
#233F5D #5D235C #5D4123 #235D24
square
#233F5D #5D235C #5D4123 #235D24
split-complementary
#233F5D #5D2423 #5C5D23
monochromatic
#080F16 #122131 #233F5D #345D89 #447BB6
Accessibility & contrast
On white
10.82
#233F5D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.94
#233F5D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #233F5D
10.82:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##233F5D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##233F5D | 1.00 | 10.82 | 1.94 | 10.82 |
| #FFFFFF | 10.82 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.94 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.82 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#32405E
Deuteranopia (green-blind)
#2B3B5C
Tritanopia (blue-blind)
#00464A
Achromatopsia (no color)
#3D3D3D
Design tokens & code
CSS
--color: #233f5d; /* rgb */ color: rgb(35, 63, 93); /* oklch */ color: oklch(36.0% 0.063 251.4);
Tailwind
colors: {
custom: {
50: '#63738b',
500: '#233f5d',
950: '#000000',
},
}SCSS
$custom: #233f5d; $custom-light: #63738b; $custom-dark: #000000;
JSON
{
"hex": "#233f5d",
"rgb": {
"r": 35,
"g": 63,
"b": 93
},
"hsl": {
"h": 211.034,
"s": 45.312,
"l": 25.098
},
"oklch": {
"l": 0.36043,
"c": 0.0625,
"h": 251.4
},
"luminance": 0.04703
}Semantic roles & 50–950 ramp
primary
#233F5D
secondary
#916F4B
accent
#9653D5
background
#F6F7F8
surface
#EBEDF0
border
#C6C8CB
text
#06080C
muted
#7A7B7D