#0A545F
Closest named color: Deep Teal (#00555A). oklch(41% 0.068 210.7), rgb(10, 84, 95).
Aa
White text reads best on this color (8.58:1).
About this color
#0A545F is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.068 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.011 away. White text reads best on it, at 8.58:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.44:1 |
| White text | 8.58:1 |
Values
| HEX | #0A545F |
| RGB | rgb(10, 84, 95) |
| HSL | hsl(188, 81%, 21%) |
| OKLCH | oklch(41% 0.068 210.7) |
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 #0A545F | 8.58:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #0A545F | 2.44:1 | Fails | Lc 14.9 | Not readable |
| #0A545F text on white | 8.58:1 | AAA | Lc 89.1 | Fine for body text |
| #0A545F text on black | 2.44:1 | Fails | Lc -13.1 | 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 800.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#C9DDE1
oklch(88.4% 0.022 211)
-
Step 300
300
#A4C8CF
oklch(80.9% 0.04 210.7)
-
Step 400
400
#71ACB7
oklch(70.8% 0.063 210.5)
-
Step 500
500
#4697A5
oklch(63.2% 0.081 210.4)
-
Step 600
600
#1F8190
oklch(55.6% 0.088 210.3)
-
Step 700
700
#0E6D7B
oklch(49.2% 0.082 210.8)
-
Step 800
800 (this color)
#0A545F
oklch(41% 0.068 210.7)
-
Step 900
900
#194951
oklch(37.7% 0.053 210.3)
-
Step 950
950
#102B30
oklch(27% 0.034 211.3)
#0A545F 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) | #4B5160 | 0.063 |
| Deuteranopia (no green cones) | #40495F | 0.057 |
| Tritanopia (no blue cones) | #005957 | 0.025 |
| Achromatopsia (no color) | #4C4C4C | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A545F
#0A545F
oklch(41% 0.068 210.7)
- #6A3C34
#6A3C34
oklch(41% 0.067 30.7)
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 #0A545F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.011
- Dark Slate Gray #2F4F4F ΔE 0.034
- Dark Teal #014D4E ΔE 0.034
- Petrol #005F6A ΔE 0.035
- Dark Blue Green #005249 ΔE 0.038
- Charcoal #264653 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.058
Use #0A545F 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.