#40ECD5
Closest named color: Turquoise (#40E0D0). oklch(85.3% 0.14 181.7), rgb(64, 236, 213).
Aa
Black text reads best on this color (14.17:1).
About this color
#40ECD5 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 85%, its chroma 0.140 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise (#40E0D0), ΔE 0.033 away. Black text reads best on it, at 14.17:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | Turquoise (#40E0D0) |
| Black text | 14.17:1 |
| White text | 1.48:1 |
Values
| HEX | #40ECD5 |
| RGB | rgb(64, 236, 213) |
| HSL | hsl(172, 82%, 59%) |
| OKLCH | oklch(85.3% 0.14 181.7) |
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 #40ECD5 | 1.48:1 | Fails | Lc -25.3 | Dividers and decoration only |
| Black text on #40ECD5 | 14.17:1 | AAA | Lc 81.5 | Fine for body text |
| #40ECD5 text on white | 1.48:1 | Fails | Lc 22.2 | Dividers and decoration only |
| #40ECD5 text on black | 14.17:1 | AAA | Lc -81.0 | Fine for body text |
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 200.
-
Step 50
50
#E5FBF6
oklch(97.1% 0.024 180.7)
-
Step 100
100
#C5F6EC
oklch(93.6% 0.052 181.3)
-
Step 200
200 (this color)
#40ECD5
oklch(85.3% 0.14 181.7)
-
Step 300
300
#00DEC7
oklch(80.8% 0.145 181.9)
-
Step 400
400
#00BAA6
oklch(70.8% 0.127 181.5)
-
Step 500
500
#009F8E
oklch(63% 0.113 181.8)
-
Step 600
600
#008677
oklch(55.6% 0.1 181.4)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#40ECD5 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) | #E1DED4 | 0.148 |
| Deuteranopia (no green cones) | #CACDD7 | 0.141 |
| Tritanopia (no blue cones) | #00F0E5 | 0.022 |
| Achromatopsia (no color) | #D4D4D4 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40ECD5
#40ECD5
oklch(85.3% 0.14 181.7)
- #FFB8CA
#FFB8CA
oklch(85.3% 0.085 2.3)
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 #40ECD5, closest first.
No curated palette has a color within ΔE 0.04 of #40ECD5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise #40E0D0 ΔE 0.033
- Aqua Marine #2EE8BB ΔE 0.037
- Bright Aqua #0BF9EA ΔE 0.037
- Light Turquoise #7EF4CC ΔE 0.048
- Bright Teal #01F9C6 ΔE 0.048
- Light Teal #90E4C1 ΔE 0.054
- Bright Light Blue #26F7FD ΔE 0.054
- Bright Turquoise #0FFEF9 ΔE 0.057
Use #40ECD5 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.