#409B8F
Closest named color: Sea (#3C9992). oklch(63.1% 0.088 183.5), rgb(64, 155, 143).
Aa
Black text reads best on this color (6.30:1).
About this color
#409B8F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.088 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.009 away. Black text reads best on it, at 6.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.30:1 |
| White text | 3.33:1 |
Values
| HEX | #409B8F |
| RGB | rgb(64, 155, 143) |
| HSL | hsl(172, 42%, 43%) |
| OKLCH | oklch(63.1% 0.088 183.5) |
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 #409B8F | 3.33:1 | AA large text | Lc -65.9 | Content text, not long reading |
| Black text on #409B8F | 6.30:1 | AA | Lc 43.6 | Non-text elements, placeholder text |
| #409B8F text on white | 3.33:1 | AA large text | Lc 60.5 | Content text, not long reading |
| #409B8F text on black | 6.30:1 | AA | Lc -41.2 | 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
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C9DFDB
oklch(88.6% 0.024 183.7)
-
Step 300
300
#A3CAC3
oklch(80.9% 0.043 183.1)
-
Step 400
400
#6DAFA5
oklch(70.7% 0.069 183.7)
-
Step 500
500 (this color)
#409B8F
oklch(63.1% 0.088 183.5)
-
Step 600
600
#0F8579
oklch(55.5% 0.096 183.6)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#065C53
oklch(42.7% 0.074 183.3)
-
Step 900
900
#144B45
oklch(37.6% 0.057 184.7)
-
Step 950
950
#0E2C28
oklch(26.9% 0.036 183.6)
#409B8F 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) | #94938F | 0.094 |
| Deuteranopia (no green cones) | #868890 | 0.089 |
| Tritanopia (no blue cones) | #009E97 | 0.023 |
| Achromatopsia (no color) | #8D8D8D | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #409B8F
#409B8F
oklch(63.1% 0.088 183.5)
- #B77384
#B77384
oklch(63.3% 0.088 3.7)
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 #409B8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.009
- Persian Green #2A9D8F ΔE 0.013
- Blue Green #0F9B8E ΔE 0.022
- Grey Teal #5E9B8A ΔE 0.026
- Dull Teal #5F9E8F ΔE 0.029
- Dusty Teal #4C9085 ΔE 0.031
- Teal Green #0A9396 ΔE 0.039
- Cadet Blue #5F9EA0 ΔE 0.040
Use #409B8F 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.