#104F45
Closest named color: Dark Blue Green (#005249). oklch(38.6% 0.064 179.6), rgb(16, 79, 69).
Aa
White text reads best on this color (9.43:1).
About this color
#104F45 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.064 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.010 away. White text reads best on it, at 9.43:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.22:1 |
| White text | 9.43:1 |
Values
| HEX | #104F45 |
| RGB | rgb(16, 79, 69) |
| HSL | hsl(170, 66%, 19%) |
| OKLCH | oklch(38.6% 0.064 179.6) |
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 #104F45 | 9.43:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #104F45 | 2.22:1 | Fails | Lc 12.5 | Not readable |
| #104F45 text on white | 9.43:1 | AAA | Lc 91.5 | Preferred for body text |
| #104F45 text on black | 2.22:1 | Fails | Lc -10.9 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C7DFD9
oklch(88.4% 0.027 179)
-
Step 300
300
#A0CBC1
oklch(80.8% 0.048 179.2)
-
Step 400
400
#68B1A2
oklch(70.8% 0.077 179.3)
-
Step 500
500
#359D8B
oklch(63.2% 0.098 179.2)
-
Step 600
600
#008675
oklch(55.5% 0.101 179.7)
-
Step 700
700
#007162
oklch(49.1% 0.09 179.3)
-
Step 800
800
#005D50
oklch(42.8% 0.078 178.9)
-
Step 900
900 (this color)
#104F45
oklch(38.6% 0.064 179.6)
-
Step 950
950
#0B2D27
oklch(27.1% 0.041 179.3)
#104F45 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) | #4B4A45 | 0.067 |
| Deuteranopia (no green cones) | #434346 | 0.065 |
| Tritanopia (no blue cones) | #00504C | 0.012 |
| Achromatopsia (no color) | #464646 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #104F45
#104F45
oklch(38.6% 0.064 179.6)
- #603543
#603543
oklch(38.7% 0.064 359.6)
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 #104F45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.010
- Dark Teal #014D4E ΔE 0.019
- Dark Slate Gray #2F4F4F ΔE 0.034
- Deep Teal #00555A ΔE 0.035
- Evergreen #05472A ΔE 0.047
- Charcoal #264653 ΔE 0.048
- Pine Green #0A481E ΔE 0.060
- Dark Grey Blue #29465B ΔE 0.060
Use #104F45 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.