#409C78
Closest named color: Ocean Green (#3D9973). oklch(62.7% 0.104 164.5), rgb(64, 156, 120).
Aa
Black text reads best on this color (6.24:1).
About this color
#409C78 is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.104 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.011 away. Black text reads best on it, at 6.24:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.24:1 |
| White text | 3.36:1 |
Values
| HEX | #409C78 |
| RGB | rgb(64, 156, 120) |
| HSL | hsl(157, 42%, 43%) |
| OKLCH | oklch(62.7% 0.104 164.5) |
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 #409C78 | 3.36:1 | AA large text | Lc -66.3 | Content text, not long reading |
| Black text on #409C78 | 6.24:1 | AA | Lc 43.2 | Non-text elements, placeholder text |
| #409C78 text on white | 3.36:1 | AA large text | Lc 60.8 | Content text, not long reading |
| #409C78 text on black | 6.24:1 | AA | Lc -40.9 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E1EDE7
oklch(93.5% 0.015 164.7)
-
Step 200
200
#C9DFD4
oklch(88.4% 0.028 164.3)
-
Step 300
300
#A3CCB8
oklch(81% 0.052 164)
-
Step 400
400
#6EB194
oklch(70.7% 0.081 165)
-
Step 500
500 (this color)
#409C78
oklch(62.7% 0.104 164.5)
-
Step 600
600
#138862
oklch(55.7% 0.113 164.4)
-
Step 700
700
#007351
oklch(49.2% 0.104 164.3)
-
Step 800
800
#095E42
oklch(42.8% 0.088 163.9)
-
Step 900
900
#154D38
oklch(37.8% 0.068 164.3)
-
Step 950
950
#0F2D21
oklch(27% 0.043 164.6)
#409C78 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) | #999276 | 0.102 |
| Deuteranopia (no green cones) | #8C887A | 0.099 |
| Tritanopia (no blue cones) | #109C92 | 0.041 |
| Achromatopsia (no color) | #8C8C8C | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #409C78
#409C78
oklch(62.7% 0.104 164.5)
- #B56E97
#B56E97
oklch(62.8% 0.104 344.9)
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 #409C78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.011
- Persian Green #2A9D8F ΔE 0.033
- Blue Green #0F9B8E ΔE 0.037
- Jade #1FA774 ΔE 0.037
- Grey Teal #5E9B8A ΔE 0.041
- Sea #3C9992 ΔE 0.043
- Viridian #1E9167 ΔE 0.045
- Dull Teal #5F9E8F ΔE 0.046
Use #409C78 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.