#51D6D7
Closest named color: Medium Turquoise (#48D1CC). oklch(80.5% 0.114 195.8), rgb(81, 214, 215).
Aa
Black text reads best on this color (11.94:1).
About this color
#51D6D7 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 80%, its chroma 0.114 and its hue 196°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Turquoise (#48D1CC), ΔE 0.020 away. Black text reads best on it, at 11.94:1.
| Hue family | Teals and cyans |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Medium Turquoise (#48D1CC) |
| Black text | 11.94:1 |
| White text | 1.75:1 |
Values
| HEX | #51D6D7 |
| RGB | rgb(81, 214, 215) |
| HSL | hsl(180, 63%, 58%) |
| OKLCH | oklch(80.5% 0.114 195.8) |
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 #51D6D7 | 1.75:1 | Fails | Lc -35.7 | Non-text elements, placeholder text |
| Black text on #51D6D7 | 11.94:1 | AAA | Lc 72.0 | Content text, not long reading |
| #51D6D7 text on white | 1.75:1 | Fails | Lc 31.8 | Non-text elements, placeholder text |
| #51D6D7 text on black | 11.94:1 | AAA | Lc -70.9 | Content text, not long reading |
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 300.
-
Step 50
50
#EAF9F9
oklch(97.1% 0.016 196.9)
-
Step 100
100
#D2F1F1
oklch(93.6% 0.032 196.6)
-
Step 200
200
#A8E7E7
oklch(88.6% 0.063 196.1)
-
Step 300
300 (this color)
#51D6D7
oklch(80.5% 0.114 195.8)
-
Step 400
400
#00B7B9
oklch(70.6% 0.12 196.2)
-
Step 500
500
#009D9E
oklch(63.1% 0.108 195.6)
-
Step 600
600
#008485
oklch(55.6% 0.095 195.7)
-
Step 700
700
#006F70
oklch(49.1% 0.084 195.9)
-
Step 800
800
#005B5C
oklch(42.7% 0.073 196.1)
-
Step 900
900
#004C4D
oklch(37.8% 0.064 196.3)
-
Step 950
950
#002D2E
oklch(27% 0.046 197.1)
#51D6D7 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) | #C9CCD7 | 0.119 |
| Deuteranopia (no green cones) | #B4BDD8 | 0.111 |
| Tritanopia (no blue cones) | #00DDD6 | 0.028 |
| Achromatopsia (no color) | #C3C3C3 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51D6D7
#51D6D7
oklch(80.5% 0.114 195.8)
- #FFA1A7
#FFA1A7
oklch(80.5% 0.112 15.7)
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 #51D6D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Turquoise #48D1CC ΔE 0.020
- Aqua Blue #02D8E9 ΔE 0.030
- Turquoise #40E0D0 ΔE 0.033
- Dark Turquoise #00CED1 ΔE 0.037
- Seafoam Blue #78D1B6 ΔE 0.047
- Pale Teal #82CBB2 ΔE 0.056
- Vivid Sky Blue #4CC9F0 ΔE 0.059
- Tiffany Blue #94D2BD ΔE 0.059
Use #51D6D7 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.