#0A5148
Closest named color: Dark Blue Green (#005249). oklch(39.2% 0.067 181.7), rgb(10, 81, 72).
Aa
White text reads best on this color (9.19:1).
About this color
#0A5148 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.067 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.004 away. White text reads best on it, at 9.19:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.28:1 |
| White text | 9.19:1 |
Values
| HEX | #0A5148 |
| RGB | rgb(10, 81, 72) |
| HSL | hsl(172, 78%, 18%) |
| OKLCH | oklch(39.2% 0.067 181.7) |
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 #0A5148 | 9.19:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #0A5148 | 2.28:1 | Fails | Lc 13.1 | Not readable |
| #0A5148 text on white | 9.19:1 | AAA | Lc 90.8 | Preferred for body text |
| #0A5148 text on black | 2.28:1 | Fails | Lc -11.5 | 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
#E0EDEA
oklch(93.6% 0.014 180.7)
-
Step 200
200
#C6DFDA
oklch(88.4% 0.027 182.3)
-
Step 300
300
#9ECCC3
oklch(81% 0.05 181.7)
-
Step 400
400
#63B1A4
oklch(70.6% 0.08 181.9)
-
Step 500
500
#2A9D8E
oklch(63% 0.102 182.2)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900 (this color)
#0A5148
oklch(39.2% 0.067 181.7)
-
Step 950
950
#082D28
oklch(27% 0.042 182.3)
#0A5148 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) | #4D4C48 | 0.071 |
| Deuteranopia (no green cones) | #444549 | 0.067 |
| Tritanopia (no blue cones) | #00534E | 0.010 |
| Achromatopsia (no color) | #484848 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A5148
#0A5148
oklch(39.2% 0.067 181.7)
- #633643
#633643
oklch(39.3% 0.066 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 #0A5148, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.004
- Dark Teal #014D4E ΔE 0.020
- Deep Teal #00555A ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.033
- Charcoal #264653 ΔE 0.050
- Evergreen #05472A ΔE 0.052
- Spruce #0A5F38 ΔE 0.061
- Dark Grey Blue #29465B ΔE 0.061
Use #0A5148 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.