#51AA95
Closest named color: Greeny Blue (#42B395). oklch(67.7% 0.092 175.8), rgb(81, 170, 149).
Aa
Black text reads best on this color (7.53:1).
About this color
#51AA95 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.092 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.027 away. Black text reads best on it, at 7.53:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.53:1 |
| White text | 2.78:1 |
Values
| HEX | #51AA95 |
| RGB | rgb(81, 170, 149) |
| HSL | hsl(166, 35%, 49%) |
| OKLCH | oklch(67.7% 0.092 175.8) |
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 #51AA95 | 2.78:1 | Fails | Lc -58.8 | Large or bold text, headings |
| Black text on #51AA95 | 7.53:1 | AAA | Lc 50.5 | Large or bold text, headings |
| #51AA95 text on white | 2.78:1 | Fails | Lc 53.5 | Large or bold text, headings |
| #51AA95 text on black | 7.53:1 | AAA | Lc -48.3 | 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 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
#9ACDBF
oklch(80.9% 0.057 176.1)
-
Step 400
400 (this color)
#51AA95
oklch(67.7% 0.092 175.8)
-
Step 500
500
#06A086
oklch(63.1% 0.117 175.5)
-
Step 600
600
#008771
oklch(55.7% 0.104 175.8)
-
Step 700
700
#00715E
oklch(49% 0.092 175.6)
-
Step 800
800
#005D4D
oklch(42.7% 0.08 175.6)
-
Step 900
900
#004D40
oklch(37.6% 0.07 176.4)
-
Step 950
950
#032E25
oklch(27% 0.048 174.9)
#51AA95 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) | #A5A194 | 0.097 |
| Deuteranopia (no green cones) | #979797 | 0.092 |
| Tritanopia (no blue cones) | #25ACA4 | 0.029 |
| Achromatopsia (no color) | #9B9B9B | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51AA95
#51AA95
oklch(67.7% 0.092 175.8)
- #C57F99
#C57F99
oklch(67.7% 0.092 356)
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 #51AA95, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.027
- Dull Teal #5F9E8F ΔE 0.034
- Light Sea Green #20B2AA ΔE 0.035
- Tea #65AB7C ΔE 0.038
- Grey Teal #5E9B8A ΔE 0.041
- Cadet Blue #5F9EA0 ΔE 0.045
- Persian Green #2A9D8F ΔE 0.049
- Topaz #13BBAF ΔE 0.052
Use #51AA95 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.