#51916D
Closest named color: Slate Green (#658D6D). oklch(60.3% 0.087 157.8), rgb(81, 145, 109).
Aa
Black text reads best on this color (5.62:1).
About this color
#51916D is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.087 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.023 away. Black text reads best on it, at 5.62:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.62:1 |
| White text | 3.73:1 |
Values
| HEX | #51916D |
| RGB | rgb(81, 145, 109) |
| HSL | hsl(146, 28%, 44%) |
| OKLCH | oklch(60.3% 0.087 157.8) |
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 #51916D | 3.73:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #51916D | 5.62:1 | AA | Lc 39.3 | Non-text elements, placeholder text |
| #51916D text on white | 3.73:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #51916D text on black | 5.62:1 | AA | Lc -36.9 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3ECE7
oklch(93.5% 0.012 162)
-
Step 200
200
#CDDED3
oklch(88.5% 0.024 157.5)
-
Step 300
300
#ABC9B6
oklch(80.8% 0.042 157.5)
-
Step 400
400
#7DAE90
oklch(70.7% 0.068 157.3)
-
Step 500
500 (this color)
#51916D
oklch(60.3% 0.087 157.8)
-
Step 600
600
#3C845E
oklch(55.6% 0.094 158.1)
-
Step 700
700
#2E704D
oklch(49.2% 0.088 157.5)
-
Step 800
800
#275B3F
oklch(42.7% 0.073 157.6)
-
Step 900
900
#254B36
oklch(37.8% 0.057 157.9)
-
Step 950
950
#172C20
oklch(27.1% 0.035 157.9)
#51916D 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) | #90886B | 0.081 |
| Deuteranopia (no green cones) | #86816F | 0.078 |
| Tritanopia (no blue cones) | #429087 | 0.040 |
| Achromatopsia (no color) | #848484 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51916D
#51916D
oklch(60.3% 0.087 157.8)
- #A36D93
#A36D93
oklch(60.4% 0.086 338.2)
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 #51916D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.023
- Ocean Green #3D9973 ΔE 0.025
- Light Forest Green #4F9153 ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.037
- Viridian #1E9167 ΔE 0.037
- Dark Sage #598556 ΔE 0.039
- Green Grey #77926F ΔE 0.044
- Sea Green #2E8B57 ΔE 0.048
Use #51916D 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.