#0F232C
Closest named color: Dark (#1B2431). oklch(24.4% 0.031 229.1), rgb(15, 35, 44).
Aa
White text reads best on this color (16.19:1).
About this color
#0F232C is a very dark, muted teal or cyan. In OKLCH its lightness is 24%, its chroma 0.031 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.020 away. White text reads best on it, at 16.19:1.
| Hue family | Teals and cyans |
| Lightness | very dark (24%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.29:1 |
| White text | 16.19:1 |
Values
| HEX | #0F232C |
| RGB | rgb(15, 35, 44) |
| HSL | hsl(199, 49%, 12%) |
| OKLCH | oklch(24.4% 0.031 229.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #0F232C | 16.19:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #0F232C | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #0F232C text on white | 16.19:1 | AAA | Lc 103.1 | Preferred for body text |
| #0F232C text on black | 1.29:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#A9C6D4
oklch(81% 0.037 228.5)
-
Step 400
400
#7AA8BE
oklch(70.7% 0.059 229.1)
-
Step 500
500
#5692AE
oklch(63% 0.075 229.7)
-
Step 600
600
#397C9A
oklch(55.6% 0.082 230)
-
Step 700
700
#2A6983
oklch(49.2% 0.076 228.5)
-
Step 800
800
#25556B
oklch(42.6% 0.063 230.6)
-
Step 900
900
#234756
oklch(37.8% 0.049 227.3)
-
Step 950
950 (this color)
#0F232C
oklch(24.4% 0.031 229.1)
#0F232C with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #1E222C | 0.022 |
| Deuteranopia (no green cones) | #1A1F2C | 0.020 |
| Tritanopia (no blue cones) | #012626 | 0.023 |
| Achromatopsia (no color) | #212121 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F232C
#0F232C
oklch(24.4% 0.031 229.1)
- #2C1C13
#2C1C13
oklch(24.4% 0.03 50.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #0F232C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.020
- Jet #212529 ΔE 0.029
- Rich Black #0D1B2A ΔE 0.029
- Oxford Blue #1B263B ΔE 0.035
- Space Cadet #2B2D42 ΔE 0.068
- Gunmetal #293241 ΔE 0.073
- Rich Navy #001219 ΔE 0.075
- Dark Brown #341C02 ΔE 0.085
Use #0F232C in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.