#0F435B#0F435B
#0F435B is a dark, moderate cyan. Relative luminance 0.049; OKLCH L 36.2% C 0.067 H 233.5°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).
Color values
| HEX | #0F435B |
|---|---|
| RGB | rgb(15, 67, 91) |
| HSL | hsl(199, 72%, 21%) |
| HSV | hsv(199, 84%, 36%) |
| CMYK | cmyk(83.5%, 26.4%, 0%, 64.3%) |
| CIE-LAB | lab(26.36, -7.36, -19.02) |
| CIE-LCH | lch(26.36, 20.40, 248.84°) |
| OKLab | oklab(36.19% -0.0397 -0.0536) |
| OKLCH | oklch(36.19% 0.067 233.5) |
| XYZ | xyz(4.0917, 4.8707, 10.6200) |
| Luminance | 0.0487 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Slate Blue
#214761
ΔE00 3.09
Dark Grey Blue
#29465B
ΔE00 3.65
Dark Blue Grey
#1F3B4D
ΔE00 4.07
Prussian Blue
#004577
ΔE00 7.37
Charcoal
#36454F
ΔE00 7.53
Deep Sea Blue
#015482
ΔE00 8.07
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#0F435B #5B270F
analogous
#0F5B4D #0F435B #0F1D5B
triadic
#0F435B #5B0F43 #435B0F
tetradic
#0F435B #4D0F5B #5B270F #1D5B0F
square
#0F435B #4D0F5B #5B270F #1D5B0F
split-complementary
#0F435B #5B0F1D #5B4D0F
monochromatic
#04131A #061C26 #0F435B #186A90 #2090C4
Accessibility & contrast
On white
10.64
#0F435B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.97
#0F435B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #0F435B
10.64:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##0F435B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##0F435B | 1.00 | 10.64 | 1.97 | 10.64 |
| #FFFFFF | 10.64 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.97 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.64 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#37425C
Deuteranopia (green-blind)
#2D3B5B
Tritanopia (blue-blind)
#00494B
Achromatopsia (no color)
#3E3E3E
Design tokens & code
CSS
--color: #0f435b; /* rgb */ color: rgb(15, 67, 91); /* oklch */ color: oklch(36.2% 0.067 233.5);
Tailwind
colors: {
custom: {
50: '#5b7789',
500: '#0f435b',
950: '#000000',
},
}SCSS
$custom: #0f435b; $custom-light: #5b7789; $custom-dark: #000000;
JSON
{
"hex": "#0f435b",
"rgb": {
"r": 15,
"g": 67,
"b": 91
},
"hsl": {
"h": 198.947,
"s": 71.698,
"l": 20.784
},
"oklch": {
"l": 0.3619,
"c": 0.06673,
"h": 233.5
},
"luminance": 0.04871
}Semantic roles & 50–950 ramp
primary
#0F435B
secondary
#955131
accent
#7339EE
background
#F5F7F8
surface
#E9EDF0
border
#C5C8CB
text
#04080B
muted
#797B7C