#0B282B
Closest named color: Dark (#1B2431). oklch(25.7% 0.035 204.6), rgb(11, 40, 43).
Aa
White text reads best on this color (15.52:1).
About this color
#0B282B is a dark, muted teal or cyan. In OKLCH its lightness is 26%, its chroma 0.035 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.028 away. White text reads best on it, at 15.52:1.
| Hue family | Teals and cyans |
| Lightness | dark (26%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Dark (#1B2431) |
| Black text | 1.35:1 |
| White text | 15.52:1 |
Values
| HEX | #0B282B |
| RGB | rgb(11, 40, 43) |
| HSL | hsl(186, 59%, 11%) |
| OKLCH | oklch(25.7% 0.035 204.6) |
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 #0B282B | 15.52:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #0B282B | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #0B282B text on white | 15.52:1 | AAA | Lc 102.3 | Preferred for body text |
| #0B282B text on black | 1.35:1 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A3C9CD
oklch(81% 0.041 204.3)
-
Step 400
400
#6EADB4
oklch(70.8% 0.065 204.7)
-
Step 500
500
#4198A1
oklch(63.1% 0.084 204.6)
-
Step 600
600
#13828C
oklch(55.5% 0.091 204.7)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#095A61
oklch(42.8% 0.07 204.4)
-
Step 900
900
#154A4F
oklch(37.7% 0.055 204.1)
-
Step 950
950 (this color)
#0B282B
oklch(25.7% 0.035 204.6)
#0B282B 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) | #24262B | 0.034 |
| Deuteranopia (no green cones) | #1F222B | 0.032 |
| Tritanopia (no blue cones) | #002A29 | 0.013 |
| Achromatopsia (no color) | #242424 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B282B
#0B282B
oklch(25.7% 0.035 204.6)
- #321C1B
#321C1B
oklch(25.5% 0.035 22.6)
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 #0B282B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.028
- Jet #212529 ΔE 0.029
- Oxford Blue #1B263B ΔE 0.040
- Rich Black #0D1B2A ΔE 0.048
- Space Cadet #2B2D42 ΔE 0.066
- Gunmetal #293241 ΔE 0.066
- Dark Forest Green #002D04 ΔE 0.073
- Very Dark Green #062E03 ΔE 0.074
Use #0B282B 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.