#51A477
Closest named color: Tea (#65AB7C). oklch(65.4% 0.106 157.8), rgb(81, 164, 119).
Aa
Black text reads best on this color (6.92:1).
About this color
#51A477 is a medium-light, moderately saturated green. In OKLCH its lightness is 65%, its chroma 0.106 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tea (#65AB7C), ΔE 0.030 away. Black text reads best on it, at 6.92:1.
| Hue family | Greens |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 6.92:1 |
| White text | 3.03:1 |
Values
| HEX | #51A477 |
| RGB | rgb(81, 164, 119) |
| HSL | hsl(147, 34%, 48%) |
| OKLCH | oklch(65.4% 0.106 157.8) |
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 #51A477 | 3.03:1 | AA large text | Lc -62.3 | Content text, not long reading |
| Black text on #51A477 | 6.92:1 | AA | Lc 47.2 | Large or bold text, headings |
| #51A477 text on white | 3.03:1 | AA large text | Lc 56.9 | Large or bold text, headings |
| #51A477 text on black | 6.92:1 | AA | Lc -44.9 | 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
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#CADFD2
oklch(88.4% 0.029 158.6)
-
Step 300
300
#A5CBB4
oklch(80.8% 0.052 158.4)
-
Step 400
400
#73B18D
oklch(70.8% 0.083 157.9)
-
Step 500
500 (this color)
#51A477
oklch(65.4% 0.106 157.8)
-
Step 600
600
#258758
oklch(55.5% 0.116 157.7)
-
Step 700
700
#157348
oklch(49.2% 0.108 157.5)
-
Step 800
800
#165D3B
oklch(42.6% 0.089 157.7)
-
Step 900
900
#1B4D33
oklch(37.8% 0.07 157.6)
-
Step 950
950
#112D1E
oklch(27% 0.044 158)
#51A477 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) | #A39974 | 0.099 |
| Deuteranopia (no green cones) | #97917A | 0.096 |
| Tritanopia (no blue cones) | #3AA398 | 0.049 |
| Achromatopsia (no color) | #949494 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51A477
#51A477
oklch(65.4% 0.106 157.8)
- #BA76A7
#BA76A7
oklch(65.3% 0.106 337.8)
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 #51A477, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tea #65AB7C ΔE 0.030
- Jade #1FA774 ΔE 0.030
- Dark Seafoam Green #3EAF76 ΔE 0.034
- Algae #54AC68 ΔE 0.036
- Ocean Green #3D9973 ΔE 0.038
- Seaweed Green #35AD6B ΔE 0.040
- Bluey Green #2BB179 ΔE 0.041
- Dusty Green #76A973 ΔE 0.041
Use #51A477 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.