#0A4543
Closest named color: Dark Teal (#014D4E). oklch(35.5% 0.057 191.4), rgb(10, 69, 67).
Aa
White text reads best on this color (10.79:1).
About this color
#0A4543 is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.057 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.028 away. White text reads best on it, at 10.79:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 1.94:1 |
| White text | 10.79:1 |
Values
| HEX | #0A4543 |
| RGB | rgb(10, 69, 67) |
| HSL | hsl(178, 75%, 15%) |
| OKLCH | oklch(35.5% 0.057 191.4) |
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 #0A4543 | 10.79:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #0A4543 | 1.94:1 | Fails | Lc 9.2 | Not readable |
| #0A4543 text on white | 10.79:1 | AAA | Lc 94.7 | Preferred for body text |
| #0A4543 text on black | 1.94:1 | Fails | Lc -7.9 | 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 900.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEC
oklch(93.7% 0.013 190.9)
-
Step 200
200
#C8DEDD
oklch(88.4% 0.023 193.4)
-
Step 300
300
#A2CAC7
oklch(80.9% 0.043 190.7)
-
Step 400
400
#6CAEAB
oklch(70.6% 0.068 192)
-
Step 500
500
#3E9A96
oklch(63.1% 0.087 191.2)
-
Step 600
600
#078481
oklch(55.5% 0.094 192)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#035B59
oklch(42.6% 0.072 192.2)
-
Step 900
900 (this color)
#0A4543
oklch(35.5% 0.057 191.4)
-
Step 950
950
#0E2C2B
oklch(27% 0.036 192.3)
#0A4543 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) | #404143 | 0.059 |
| Deuteranopia (no green cones) | #383B43 | 0.055 |
| Tritanopia (no blue cones) | #004744 | 0.007 |
| Achromatopsia (no color) | #3D3D3D | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A4543
#0A4543
oklch(35.5% 0.057 191.4)
- #552F34
#552F34
oklch(35.5% 0.056 11.8)
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 #0A4543, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.028
- Charcoal #264653 ΔE 0.038
- Dark Blue Green #005249 ΔE 0.042
- Midnight Green #073B4C ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.045
- Evergreen #05472A ΔE 0.046
- Onyx #343A40 ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.052
Use #0A4543 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.