#409B8D
Closest named color: Sea (#3C9992). oklch(63.1% 0.089 181.6), rgb(64, 155, 141).
Aa
Black text reads best on this color (6.29:1).
About this color
#409B8D is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.089 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.011 away. Black text reads best on it, at 6.29:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.29:1 |
| White text | 3.33:1 |
Values
| HEX | #409B8D |
| RGB | rgb(64, 155, 141) |
| HSL | hsl(171, 42%, 43%) |
| OKLCH | oklch(63.1% 0.089 181.6) |
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 #409B8D | 3.33:1 | AA large text | Lc -66.0 | Content text, not long reading |
| Black text on #409B8D | 6.29:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #409B8D text on white | 3.33:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #409B8D text on black | 6.29:1 | AA | Lc -41.1 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFDA
oklch(88.6% 0.024 180.6)
-
Step 300
300
#A3CAC2
oklch(80.9% 0.043 181.3)
-
Step 400
400
#6DAFA3
oklch(70.6% 0.07 181.4)
-
Step 500
500 (this color)
#409B8D
oklch(63.1% 0.089 181.6)
-
Step 600
600
#0F8577
oklch(55.5% 0.097 181.9)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#075C52
oklch(42.7% 0.074 182)
-
Step 900
900
#154C44
oklch(37.9% 0.058 181.6)
-
Step 950
950
#0E2C28
oklch(26.9% 0.036 183.6)
#409B8D 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) | #94938C | 0.093 |
| Deuteranopia (no green cones) | #86888E | 0.090 |
| Tritanopia (no blue cones) | #009E97 | 0.024 |
| Achromatopsia (no color) | #8D8D8D | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #409B8D
#409B8D
oklch(63.1% 0.089 181.6)
- #B67285
#B67285
oklch(63% 0.089 1.8)
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 #409B8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.011
- Persian Green #2A9D8F ΔE 0.013
- Blue Green #0F9B8E ΔE 0.021
- Grey Teal #5E9B8A ΔE 0.025
- Dull Teal #5F9E8F ΔE 0.030
- Dusty Teal #4C9085 ΔE 0.031
- Ocean Green #3D9973 ΔE 0.038
- Teal Green #0A9396 ΔE 0.040
Use #409B8D 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.