#51AA87
Closest named color: Tea (#65AB7C). oklch(67.3% 0.101 165.3), rgb(81, 170, 135).
Aa
Black text reads best on this color (7.44:1).
About this color
#51AA87 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.101 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.022 away. Black text reads best on it, at 7.44:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 7.44:1 |
| White text | 2.81:1 |
Values
| HEX | #51AA87 |
| RGB | rgb(81, 170, 135) |
| HSL | hsl(156, 35%, 49%) |
| OKLCH | oklch(67.3% 0.101 165.3) |
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 #51AA87 | 2.81:1 | Fails | Lc -59.2 | Large or bold text, headings |
| Black text on #51AA87 | 7.44:1 | AAA | Lc 50.1 | Large or bold text, headings |
| #51AA87 text on white | 2.81:1 | Fails | Lc 54.0 | Large or bold text, headings |
| #51AA87 text on black | 7.44:1 | AAA | Lc -47.9 | 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 400.
-
Step 50
50
#F0F7F4
oklch(97% 0.008 168.8)
-
Step 100
100
#DFEEE7
oklch(93.6% 0.018 166.4)
-
Step 200
200
#C5E1D3
oklch(88.5% 0.035 164.1)
-
Step 300
300
#9ACEB7
oklch(80.9% 0.063 165.8)
-
Step 400
400 (this color)
#51AA87
oklch(67.3% 0.101 165.3)
-
Step 500
500
#0FA276
oklch(63.2% 0.13 165.1)
-
Step 600
600
#008862
oklch(55.5% 0.117 165.2)
-
Step 700
700
#007352
oklch(49.2% 0.104 164.9)
-
Step 800
800
#005E43
oklch(42.7% 0.089 165.5)
-
Step 900
900
#004E37
oklch(37.6% 0.079 165.5)
-
Step 950
950
#032E20
oklch(26.8% 0.053 166.1)
#51AA87 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) | #A7A085 | 0.100 |
| Deuteranopia (no green cones) | #9A9689 | 0.097 |
| Tritanopia (no blue cones) | #30AAA0 | 0.039 |
| Achromatopsia (no color) | #9A9A9A | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51AA87
#51AA87
oklch(67.3% 0.101 165.3)
- #C37CA4
#C37CA4
oklch(67.3% 0.102 345.3)
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 #51AA87, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.022
- Greeny Blue #42B395 ΔE 0.027
- Dark Seafoam Green #3EAF76 ΔE 0.035
- Dusty Green #76A973 ΔE 0.040
- Bluey Green #2BB179 ΔE 0.040
- Dull Teal #5F9E8F ΔE 0.042
- Jade #1FA774 ΔE 0.043
- Algae #54AC68 ΔE 0.044
Use #51AA87 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.