#51AA96
Closest named color: Greeny Blue (#42B395). oklch(67.7% 0.091 176.7), rgb(81, 170, 150).
Aa
Black text reads best on this color (7.54:1).
About this color
#51AA96 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.091 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.028 away. Black text reads best on it, at 7.54:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.54:1 |
| White text | 2.78:1 |
Values
| HEX | #51AA96 |
| RGB | rgb(81, 170, 150) |
| HSL | hsl(167, 35%, 49%) |
| OKLCH | oklch(67.7% 0.091 176.7) |
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 #51AA96 | 2.78:1 | Fails | Lc -58.7 | Large or bold text, headings |
| Black text on #51AA96 | 7.54:1 | AAA | Lc 50.6 | Large or bold text, headings |
| #51AA96 text on white | 2.78:1 | Fails | Lc 53.5 | Large or bold text, headings |
| #51AA96 text on black | 7.54:1 | AAA | Lc -48.4 | 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
#F0F7F5
oklch(97% 0.008 177.3)
-
Step 100
100
#DFEEE9
oklch(93.7% 0.017 174)
-
Step 200
200
#C4E0D8
oklch(88.4% 0.032 176.5)
-
Step 300
300
#9ACDC0
oklch(80.9% 0.056 177.4)
-
Step 400
400 (this color)
#51AA96
oklch(67.7% 0.091 176.7)
-
Step 500
500
#05A088
oklch(63.1% 0.116 176.9)
-
Step 600
600
#008772
oklch(55.7% 0.104 176.6)
-
Step 700
700
#00715F
oklch(49% 0.091 176.5)
-
Step 800
800
#005D4E
oklch(42.8% 0.079 176.7)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950
#032E26
oklch(27% 0.048 176.9)
#51AA96 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) | #A4A195 | 0.095 |
| Deuteranopia (no green cones) | #969798 | 0.091 |
| Tritanopia (no blue cones) | #24ACA4 | 0.028 |
| Achromatopsia (no color) | #9B9B9B | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51AA96
#51AA96
oklch(67.7% 0.091 176.7)
- #C58099
#C58099
oklch(67.8% 0.091 356.5)
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 #51AA96, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.028
- Dull Teal #5F9E8F ΔE 0.033
- Light Sea Green #20B2AA ΔE 0.035
- Tea #65AB7C ΔE 0.039
- Grey Teal #5E9B8A ΔE 0.041
- Cadet Blue #5F9EA0 ΔE 0.044
- Persian Green #2A9D8F ΔE 0.049
- Topaz #13BBAF ΔE 0.052
Use #51AA96 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.