#0A4E58
Closest named color: Dark Teal (#014D4E). oklch(39% 0.064 210.4), rgb(10, 78, 88).
Aa
White text reads best on this color (9.36:1).
About this color
#0A4E58 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.064 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.018 away. White text reads best on it, at 9.36:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.24:1 |
| White text | 9.36:1 |
Values
| HEX | #0A4E58 |
| RGB | rgb(10, 78, 88) |
| HSL | hsl(188, 80%, 19%) |
| OKLCH | oklch(39% 0.064 210.4) |
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 #0A4E58 | 9.36:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #0A4E58 | 2.24:1 | Fails | Lc 12.7 | Not readable |
| #0A4E58 text on white | 9.36:1 | AAA | Lc 91.3 | Preferred for body text |
| #0A4E58 text on black | 2.24:1 | Fails | Lc -11.1 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0EDEF
oklch(93.7% 0.014 207.9)
-
Step 200
200
#C6DEE3
oklch(88.4% 0.026 211.6)
-
Step 300
300
#9DCAD2
oklch(81% 0.049 209.6)
-
Step 400
400
#63AEBB
oklch(70.7% 0.077 209.9)
-
Step 500
500
#2B99AA
oklch(63% 0.098 210.2)
-
Step 600
600
#008293
oklch(55.6% 0.096 210.7)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900 (this color)
#0A4E58
oklch(39% 0.064 210.4)
-
Step 950
950
#082C31
oklch(27.1% 0.04 208.4)
#0A4E58 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) | #464B59 | 0.060 |
| Deuteranopia (no green cones) | #3B4358 | 0.055 |
| Tritanopia (no blue cones) | #005251 | 0.021 |
| Achromatopsia (no color) | #474747 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A4E58
#0A4E58
oklch(39% 0.064 210.4)
- #633730
#633730
oklch(39% 0.065 29.9)
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 #0A4E58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.018
- Deep Teal #00555A ΔE 0.022
- Charcoal #264653 ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.032
- Dark Blue Green #005249 ΔE 0.033
- Dark Grey Blue #29465B ΔE 0.034
- Petrol #005F6A ΔE 0.056
- Charcoal Grey #3C4142 ΔE 0.060
Use #0A4E58 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.