#409C8F
Closest named color: Sea (#3C9992). oklch(63.4% 0.089 182.7), rgb(64, 156, 143).
Aa
Black text reads best on this color (6.37:1).
About this color
#409C8F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.089 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Sea (#3C9992), ΔE 0.012 away. Black text reads best on it, at 6.37:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Sea (#3C9992) |
| Black text | 6.37:1 |
| White text | 3.29:1 |
Values
| HEX | #409C8F |
| RGB | rgb(64, 156, 143) |
| HSL | hsl(172, 42%, 43%) |
| OKLCH | oklch(63.4% 0.089 182.7) |
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 #409C8F | 3.29:1 | AA large text | Lc -65.5 | Content text, not long reading |
| Black text on #409C8F | 6.37:1 | AA | Lc 44.0 | Non-text elements, placeholder text |
| #409C8F text on white | 3.29:1 | AA large text | Lc 60.1 | Content text, not long reading |
| #409C8F text on black | 6.37:1 | AA | Lc -41.6 | 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
#A2CAC3
oklch(80.8% 0.044 183.4)
-
Step 400
400
#6DAFA4
oklch(70.7% 0.07 182.5)
-
Step 500
500 (this color)
#409C8F
oklch(63.4% 0.089 182.7)
-
Step 600
600
#0C8578
oklch(55.5% 0.097 182.8)
-
Step 700
700
#007165
oklch(49.2% 0.088 182.2)
-
Step 800
800
#055C53
oklch(42.7% 0.074 183.3)
-
Step 900
900
#144C44
oklch(37.8% 0.059 181.7)
-
Step 950
950
#0E2C28
oklch(26.9% 0.036 183.6)
#409C8F 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) | #95948F | 0.095 |
| Deuteranopia (no green cones) | #878990 | 0.090 |
| Tritanopia (no blue cones) | #009F98 | 0.023 |
| Achromatopsia (no color) | #8E8E8E | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #409C8F
#409C8F
oklch(63.4% 0.089 182.7)
- #B87385
#B87385
oklch(63.4% 0.09 3)
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 #409C8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea #3C9992 ΔE 0.012
- Persian Green #2A9D8F ΔE 0.013
- Blue Green #0F9B8E ΔE 0.023
- Grey Teal #5E9B8A ΔE 0.025
- Dull Teal #5F9E8F ΔE 0.028
- Dusty Teal #4C9085 ΔE 0.034
- Cadet Blue #5F9EA0 ΔE 0.040
- Ocean Green #3D9973 ΔE 0.040
Use #409C8F 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.