#40F4D4
Closest named color: Bright Aqua (#0BF9EA). oklch(87.2% 0.148 177.6), rgb(64, 244, 212).
Aa
Black text reads best on this color (15.10:1).
About this color
#40F4D4 is a light, vivid teal or cyan. In OKLCH its lightness is 87%, its chroma 0.148 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Bright Aqua (#0BF9EA), ΔE 0.029 away. Black text reads best on it, at 15.10:1.
| Hue family | Teals and cyans |
| Lightness | light (87%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Bright Aqua (#0BF9EA) |
| Black text | 15.10:1 |
| White text | 1.38:1 |
Values
| HEX | #40F4D4 |
| RGB | rgb(64, 244, 212) |
| HSL | hsl(169, 89%, 60%) |
| OKLCH | oklch(87.2% 0.148 177.6) |
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 #40F4D4 | 1.38:1 | Fails | Lc -21.1 | Dividers and decoration only |
| Black text on #40F4D4 | 15.10:1 | AAA | Lc 85.2 | Fine for body text |
| #40F4D4 text on white | 1.38:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #40F4D4 text on black | 15.10:1 | AAA | Lc -85.1 | 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
#E5FBF5
oklch(97% 0.024 177.7)
-
Step 100
100
#C4F7E9
oklch(93.7% 0.055 176.4)
-
Step 200
200 (this color)
#40F4D4
oklch(87.2% 0.148 177.6)
-
Step 300
300
#00DFC0
oklch(80.8% 0.149 177.8)
-
Step 400
400
#00BAA0
oklch(70.6% 0.13 177.9)
-
Step 500
500
#00A089
oklch(63.1% 0.116 177.6)
-
Step 600
600
#008673
oklch(55.5% 0.102 178.1)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#005D4F
oklch(42.8% 0.079 177.8)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#40F4D4 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) | #EAE5D3 | 0.155 |
| Deuteranopia (no green cones) | #D2D3D7 | 0.149 |
| Tritanopia (no blue cones) | #00F8EA | 0.029 |
| Achromatopsia (no color) | #DBDBDB | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40F4D4
#40F4D4
oklch(87.2% 0.148 177.6)
- #FFC1D5
#FFC1D5
oklch(87.2% 0.075 357.6)
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 #40F4D4, closest first.
No curated palette has a color within ΔE 0.04 of #40F4D4.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Aqua #0BF9EA ΔE 0.029
- Bright Teal #01F9C6 ΔE 0.030
- Light Turquoise #7EF4CC ΔE 0.036
- Aqua Marine #2EE8BB ΔE 0.043
- Light Aquamarine #7BFDC7 ΔE 0.049
- Bright Turquoise #0FFEF9 ΔE 0.049
- Aquamarine #7FFFD4 ΔE 0.051
- Bright Light Blue #26F7FD ΔE 0.055
Use #40F4D4 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.