#0B232C
Closest named color: Dark (#1B2431). oklch(24.2% 0.034 225.5), rgb(11, 35, 44).
Aa
White text reads best on this color (16.26:1).
About this color
#0B232C is a very dark, muted teal or cyan. In OKLCH its lightness is 24%, its chroma 0.034 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.024 away. White text reads best on it, at 16.26:1.
| Hue family | Teals and cyans |
| Lightness | very dark (24%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.29:1 |
| White text | 16.26:1 |
Values
| HEX | #0B232C |
| RGB | rgb(11, 35, 44) |
| HSL | hsl(196, 60%, 11%) |
| OKLCH | oklch(24.2% 0.034 225.5) |
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 #0B232C | 16.26:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #0B232C | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #0B232C text on white | 16.26:1 | AAA | Lc 103.1 | Preferred for body text |
| #0B232C 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
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CADDE5
oklch(88.6% 0.023 224.9)
-
Step 300
300
#A6C7D5
oklch(81% 0.041 225.4)
-
Step 400
400
#74AAC0
oklch(70.8% 0.065 225.4)
-
Step 500
500
#4C94B0
oklch(63.1% 0.083 225.9)
-
Step 600
600
#2A7E9B
oklch(55.6% 0.09 225.2)
-
Step 700
700
#1B6A85
oklch(49.1% 0.084 226)
-
Step 800
800
#1A576C
oklch(42.8% 0.07 225.2)
-
Step 900
900
#1D4757
oklch(37.6% 0.054 226)
-
Step 950
950 (this color)
#0B232C
oklch(24.2% 0.034 225.5)
#0B232C 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 | 0.026 |
| Deuteranopia (no green cones) | #191F2C | 0.022 |
| Tritanopia (no blue cones) | #002626 | 0.021 |
| Achromatopsia (no color) | #202020 | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B232C
#0B232C
oklch(24.2% 0.034 225.5)
- #2D1A12
#2D1A12
oklch(24.1% 0.034 43.6)
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 #0B232C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.024
- Rich Black #0D1B2A ΔE 0.029
- Jet #212529 ΔE 0.033
- Oxford Blue #1B263B ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.071
- Rich Navy #001219 ΔE 0.073
- Gunmetal #293241 ΔE 0.076
- Navy Blue #001146 ΔE 0.084
Use #0B232C 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.