#0A2525
Closest named color: Jet (#212529). oklch(24.4% 0.032 195.2), rgb(10, 37, 37).
Aa
White text reads best on this color (16.10:1).
About this color
#0A2525 is a very dark, muted teal or cyan. In OKLCH its lightness is 24%, its chroma 0.032 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.033 away. White text reads best on it, at 16.10:1.
| Hue family | Teals and cyans |
| Lightness | very dark (24%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.30:1 |
| White text | 16.10:1 |
Values
| HEX | #0A2525 |
| RGB | rgb(10, 37, 37) |
| HSL | hsl(180, 57%, 9%) |
| OKLCH | oklch(24.4% 0.032 195.2) |
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 #0A2525 | 16.10:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #0A2525 | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #0A2525 text on white | 16.10:1 | AAA | Lc 102.9 | Preferred for body text |
| #0A2525 text on black | 1.30:1 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CADEDD
oklch(88.5% 0.021 193.1)
-
Step 300
300
#A5C9C8
oklch(80.9% 0.038 194.3)
-
Step 400
400
#72ADAD
oklch(70.7% 0.061 195.9)
-
Step 500
500
#489898
oklch(63% 0.078 195.4)
-
Step 600
600
#228383
oklch(55.7% 0.086 195)
-
Step 700
700
#116E6F
oklch(49% 0.079 196)
-
Step 800
800
#145A5A
oklch(42.7% 0.066 195)
-
Step 900
900
#1A4A4A
oklch(37.7% 0.051 195.2)
-
Step 950
950 (this color)
#0A2525
oklch(24.4% 0.032 195.2)
#0A2525 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) | #222325 | 0.033 |
| Deuteranopia (no green cones) | #1E2025 | 0.031 |
| Tritanopia (no blue cones) | #002625 | 0.010 |
| Achromatopsia (no color) | #212121 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A2525
#0A2525
oklch(24.4% 0.032 195.2)
- #2E1A1B
#2E1A1B
oklch(24.5% 0.032 16.4)
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 #0A2525, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.033
- Dark #1B2431 ΔE 0.034
- Rich Black #0D1B2A ΔE 0.041
- Oxford Blue #1B263B ΔE 0.049
- Dark Forest Green #002D04 ΔE 0.069
- Very Dark Green #062E03 ΔE 0.071
- Rich Navy #001219 ΔE 0.076
- Space Cadet #2B2D42 ΔE 0.077
Use #0A2525 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.