#51A985
Closest named color: Tea (#65AB7C). oklch(67% 0.102 164.5), rgb(81, 169, 133).
Aa
Black text reads best on this color (7.36:1).
About this color
#51A985 is a medium-light, moderately saturated green. In OKLCH its lightness is 67%, its chroma 0.102 and its hue 164°. 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 7.36:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.102) |
| Temperature | in between |
| Nearest name | Tea (#65AB7C) |
| Black text | 7.36:1 |
| White text | 2.85:1 |
Values
| HEX | #51A985 |
| RGB | rgb(81, 169, 133) |
| HSL | hsl(155, 35%, 49%) |
| OKLCH | oklch(67% 0.102 164.5) |
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 #51A985 | 2.85:1 | Fails | Lc -59.7 | Large or bold text, headings |
| Black text on #51A985 | 7.36:1 | AAA | Lc 49.6 | Large or bold text, headings |
| #51A985 text on white | 2.85:1 | Fails | Lc 54.4 | Large or bold text, headings |
| #51A985 text on black | 7.36:1 | AAA | Lc -47.4 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
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
#9BCEB6
oklch(80.9% 0.063 164.4)
-
Step 400
400 (this color)
#51A985
oklch(67% 0.102 164.5)
-
Step 500
500
#14A175
oklch(63% 0.129 164.8)
-
Step 600
600
#008861
oklch(55.5% 0.117 164.6)
-
Step 700
700
#007351
oklch(49.2% 0.104 164.3)
-
Step 800
800
#005E42
oklch(42.7% 0.09 164.7)
-
Step 900
900
#004E36
oklch(37.5% 0.079 164.5)
-
Step 950
950
#042E1F
oklch(26.8% 0.053 164.2)
#51A985 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) | #A69F83 | 0.100 |
| Deuteranopia (no green cones) | #999587 | 0.097 |
| Tritanopia (no blue cones) | #31A99F | 0.040 |
| Achromatopsia (no color) | #999999 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51A985
#51A985
oklch(67% 0.102 164.5)
- #C27BA4
#C27BA4
oklch(67% 0.103 344.6)
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 #51A985, 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 0.030
- Dark Seafoam Green #3EAF76 ΔE 0.035
- Dusty Green #76A973 ΔE 0.040
- Bluey Green #2BB179 ΔE 0.040
- Jade #1FA774 ΔE 0.041
- Dull Teal #5F9E8F ΔE 0.041
- Algae #54AC68 ΔE 0.043
Use #51A985 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.