#0A2921
Closest named color: Jet (#212529). oklch(25.5% 0.04 173.1), rgb(10, 41, 33).
Aa
White text reads best on this color (15.53:1).
About this color
#0A2921 is a dark, muted teal or cyan. In OKLCH its lightness is 26%, its chroma 0.040 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Jet (#212529), ΔE 0.039 away. White text reads best on it, at 15.53:1.
| Hue family | Teals and cyans |
| Lightness | dark (26%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Jet (#212529) |
| Black text | 1.35:1 |
| White text | 15.53:1 |
Values
| HEX | #0A2921 |
| RGB | rgb(10, 41, 33) |
| HSL | hsl(165, 61%, 10%) |
| OKLCH | oklch(25.5% 0.04 173.1) |
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 #0A2921 | 15.53:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #0A2921 | 1.35:1 | Fails | Lc 0.0 | Not readable |
| #0A2921 text on white | 15.53:1 | AAA | Lc 102.3 | Preferred for body text |
| #0A2921 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE9
oklch(93.6% 0.014 174.2)
-
Step 200
200
#C9DFD7
oklch(88.5% 0.026 171.9)
-
Step 300
300
#A2CBBE
oklch(80.9% 0.047 173.8)
-
Step 400
400
#6DB09C
oklch(70.6% 0.075 173.1)
-
Step 500
500
#3F9C84
oklch(63% 0.096 173.3)
-
Step 600
600
#0C876D
oklch(55.7% 0.105 172.5)
-
Step 700
700
#00725C
oklch(49.2% 0.094 173.1)
-
Step 800
800
#055D4B
oklch(42.7% 0.08 173.2)
-
Step 900
900
#144C3E
oklch(37.6% 0.062 172.8)
-
Step 950
950 (this color)
#0A2921
oklch(25.5% 0.04 173.1)
#0A2921 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) | #272621 | 0.040 |
| Deuteranopia (no green cones) | #232322 | 0.039 |
| Tritanopia (no blue cones) | #002927 | 0.013 |
| Achromatopsia (no color) | #242424 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A2921
#0A2921
oklch(25.5% 0.04 173.1)
- #321B24
#321B24
oklch(25.6% 0.039 355.2)
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 #0A2921, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.039
- Dark #1B2431 ΔE 0.046
- Dark Forest Green #002D04 ΔE 0.052
- Very Dark Green #062E03 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.059
- Rich Black #0D1B2A ΔE 0.061
- Pakistan Green #283618 ΔE 0.067
- Dark Brown #341C02 ΔE 0.077
Use #0A2921 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.