#64B4AA
Closest named color: Topaz (#13BBAF). oklch(71.6% 0.081 185.2), rgb(100, 180, 170).
Aa
Black text reads best on this color (8.65:1).
About this color
#64B4AA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.081 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.042 away. Black text reads best on it, at 8.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.65:1 |
| White text | 2.42:1 |
Values
| HEX | #64B4AA |
| RGB | rgb(100, 180, 170) |
| HSL | hsl(173, 35%, 55%) |
| OKLCH | oklch(71.6% 0.081 185.2) |
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 #64B4AA | 2.42:1 | Fails | Lc -52.6 | Large or bold text, headings |
| Black text on #64B4AA | 8.65:1 | AAA | Lc 56.3 | Large or bold text, headings |
| #64B4AA text on white | 2.42:1 | Fails | Lc 47.6 | Large or bold text, headings |
| #64B4AA text on black | 8.65:1 | AAA | Lc -54.4 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E0EDEB
oklch(93.6% 0.014 185.9)
-
Step 200
200
#C6E0DB
oklch(88.6% 0.028 182.8)
-
Step 300
300
#9DCCC5
oklch(81% 0.05 185)
-
Step 400
400 (this color)
#64B4AA
oklch(71.6% 0.081 185.2)
-
Step 500
500
#249D92
oklch(63% 0.102 185.7)
-
Step 600
600
#00857B
oklch(55.5% 0.097 185.6)
-
Step 700
700
#007067
oklch(49% 0.086 185.2)
-
Step 800
800
#005C54
oklch(42.7% 0.075 184.7)
-
Step 900
900
#004D46
oklch(37.8% 0.067 184.5)
-
Step 950
950
#062D29
oklch(27% 0.043 185)
#64B4AA 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) | #ADACAA | 0.086 |
| Deuteranopia (no green cones) | #9FA2AB | 0.081 |
| Tritanopia (no blue cones) | #41B7B1 | 0.025 |
| Achromatopsia (no color) | #A6A6A6 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64B4AA
#64B4AA
oklch(71.6% 0.081 185.2)
- #CF8E9C
#CF8E9C
oklch(71.5% 0.081 5.2)
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 #64B4AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.042
- Light Sea Green #20B2AA ΔE 0.042
- Greeny Blue #42B395 ΔE 0.043
- Muted Teal #90B494 ΔE 0.052
- Turquoise Blue #06B1C4 ΔE 0.059
- Pewter #96A8A1 ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.062
- Cadet Blue #5F9EA0 ΔE 0.062
Use #64B4AA 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.