#51A487
Closest named color: Dull Teal (#5F9E8F). oklch(65.8% 0.093 168.3), rgb(81, 164, 135).
Aa
Black text reads best on this color (7.00:1).
About this color
#51A487 is a medium-light, moderately saturated green. In OKLCH its lightness is 66%, its chroma 0.093 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dull Teal (#5F9E8F), ΔE 0.027 away. Black text reads best on it, at 7.00:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Dull Teal (#5F9E8F) |
| Black text | 7.00:1 |
| White text | 2.99:1 |
Values
| HEX | #51A487 |
| RGB | rgb(81, 164, 135) |
| HSL | hsl(159, 34%, 48%) |
| OKLCH | oklch(65.8% 0.093 168.3) |
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 #51A487 | 2.99:1 | Fails | Lc -61.8 | Content text, not long reading |
| Black text on #51A487 | 7.00:1 | AAA | Lc 47.6 | Large or bold text, headings |
| #51A487 text on white | 2.99:1 | Fails | Lc 56.4 | Large or bold text, headings |
| #51A487 text on black | 7.00:1 | AAA | Lc -45.3 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CADFD6
oklch(88.5% 0.026 168.2)
-
Step 300
300
#A5CBBB
oklch(81% 0.046 167.7)
-
Step 400
400
#72B098
oklch(70.8% 0.074 167.9)
-
Step 500
500 (this color)
#51A487
oklch(65.8% 0.093 168.3)
-
Step 600
600
#228668
oklch(55.6% 0.101 168.2)
-
Step 700
700
#117157
oklch(49% 0.093 168.9)
-
Step 800
800
#145C47
oklch(42.6% 0.077 168.7)
-
Step 900
900
#1A4C3B
oklch(37.7% 0.061 167.5)
-
Step 950
950
#112C23
oklch(26.9% 0.037 169.3)
#51A487 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) | #A09A86 | 0.094 |
| Deuteranopia (no green cones) | #949189 | 0.091 |
| Tritanopia (no blue cones) | #32A59C | 0.033 |
| Achromatopsia (no color) | #959595 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51A487
#51A487
oklch(65.8% 0.093 168.3)
- #BC7A9B
#BC7A9B
oklch(65.8% 0.092 348.6)
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 #51A487, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Teal #5F9E8F ΔE 0.027
- Grey Teal #5E9B8A ΔE 0.030
- Tea #65AB7C ΔE 0.035
- Persian Green #2A9D8F ΔE 0.038
- Greeny Blue #42B395 ΔE 0.041
- Ocean Green #3D9973 ΔE 0.044
- Sea #3C9992 ΔE 0.045
- Jade #1FA774 ΔE 0.045
Use #51A487 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.