#51A786
Closest named color: Tea (#65AB7C). oklch(66.5% 0.098 166), rgb(81, 167, 134).
Aa
Black text reads best on this color (7.22:1).
About this color
#51A786 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.098 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.027 away. Black text reads best on it, at 7.22:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 7.22:1 |
| White text | 2.90:1 |
Values
| HEX | #51A786 |
| RGB | rgb(81, 167, 134) |
| HSL | hsl(157, 35%, 49%) |
| OKLCH | oklch(66.5% 0.098 166) |
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 #51A786 | 2.90:1 | Fails | Lc -60.5 | Content text, not long reading |
| Black text on #51A786 | 7.22:1 | AAA | Lc 48.8 | Large or bold text, headings |
| #51A786 text on white | 2.90:1 | Fails | Lc 55.2 | Large or bold text, headings |
| #51A786 text on black | 7.22:1 | AAA | Lc -46.6 | Large or bold text, headings |
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
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CADFD5
oklch(88.5% 0.026 165.6)
-
Step 300
300
#A4CBBA
oklch(80.9% 0.048 166.8)
-
Step 400
400
#71B096
oklch(70.7% 0.076 166.3)
-
Step 500
500 (this color)
#51A786
oklch(66.5% 0.098 166)
-
Step 600
600
#1D8765
oklch(55.7% 0.107 166)
-
Step 700
700
#0A7254
oklch(49.1% 0.099 166.4)
-
Step 800
800
#115D44
oklch(42.7% 0.082 165.5)
-
Step 900
900
#184C3A
oklch(37.6% 0.063 166.7)
-
Step 950
950
#102D22
oklch(27.1% 0.041 166.1)
#51A786 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) | #A49D84 | 0.098 |
| Deuteranopia (no green cones) | #979488 | 0.094 |
| Tritanopia (no blue cones) | #31A79E | 0.038 |
| Achromatopsia (no color) | #979797 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51A786
#51A786
oklch(66.5% 0.098 166)
- #BF7BA0
#BF7BA0
oklch(66.5% 0.097 346.3)
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 #51A786, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.027
- Greeny Blue #42B395 ΔE 0.034
- Dull Teal #5F9E8F ΔE 0.035
- Grey Teal #5E9B8A ΔE 0.039
- Dark Seafoam Green #3EAF76 ΔE 0.040
- Jade #1FA774 ΔE 0.042
- Dusty Green #76A973 ΔE 0.043
- Bluey Green #2BB179 ΔE 0.045
Use #51A786 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.