#40AFAC
Closest named color: Light Sea Green (#20B2AA). oklch(69.1% 0.099 192.6), rgb(64, 175, 172).
Aa
Black text reads best on this color (7.94:1).
About this color
#40AFAC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.099 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Light Sea Green (#20B2AA), ΔE 0.017 away. Black text reads best on it, at 7.94:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Light Sea Green (#20B2AA) |
| Black text | 7.94:1 |
| White text | 2.64:1 |
Values
| HEX | #40AFAC |
| RGB | rgb(64, 175, 172) |
| HSL | hsl(178, 46%, 47%) |
| OKLCH | oklch(69.1% 0.099 192.6) |
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 #40AFAC | 2.64:1 | Fails | Lc -56.3 | Large or bold text, headings |
| Black text on #40AFAC | 7.94:1 | AAA | Lc 52.8 | Large or bold text, headings |
| #40AFAC text on white | 2.64:1 | Fails | Lc 51.2 | Large or bold text, headings |
| #40AFAC text on black | 7.94:1 | AAA | Lc -50.7 | 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
#F0F7F7
oklch(97.1% 0.007 197)
-
Step 100
100
#DDEEED
oklch(93.6% 0.018 192.6)
-
Step 200
200
#C0E1DF
oklch(88.5% 0.035 192)
-
Step 300
300
#91CECB
oklch(80.9% 0.062 192.1)
-
Step 400
400 (this color)
#40AFAC
oklch(69.1% 0.099 192.6)
-
Step 500
500
#009E9B
oklch(63.2% 0.108 192.4)
-
Step 600
600
#008582
oklch(55.7% 0.096 192)
-
Step 700
700
#006F6D
oklch(49% 0.084 192.6)
-
Step 800
800
#005B5A
oklch(42.6% 0.073 193.5)
-
Step 900
900
#004C4B
oklch(37.7% 0.064 193.2)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#40AFAC 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) | #A5A6AC | 0.105 |
| Deuteranopia (no green cones) | #939AAD | 0.097 |
| Tritanopia (no blue cones) | #00B4AE | 0.021 |
| Achromatopsia (no color) | #9F9F9F | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40AFAC
#40AFAC
oklch(69.1% 0.099 192.6)
- #D1818B
#D1818B
oklch(69% 0.099 11.9)
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 #40AFAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Sea Green #20B2AA ΔE 0.017
- Topaz #13BBAF ΔE 0.035
- Turquoise Blue #06B1C4 ΔE 0.036
- Greeny Blue #42B395 ΔE 0.039
- Cadet Blue #5F9EA0 ΔE 0.048
- Dull Teal #5F9E8F ΔE 0.054
- Grey Teal #5E9B8A ΔE 0.063
- Persian Green #2A9D8F ΔE 0.063
Use #40AFAC 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.