#64B5AA
Closest named color: Topaz (#13BBAF). oklch(71.8% 0.082 184.3), rgb(100, 181, 170).
Aa
Black text reads best on this color (8.73:1).
About this color
#64B5AA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.082 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.041 away. Black text reads best on it, at 8.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.73:1 |
| White text | 2.40:1 |
Values
| HEX | #64B5AA |
| RGB | rgb(100, 181, 170) |
| HSL | hsl(172, 35%, 55%) |
| OKLCH | oklch(71.8% 0.082 184.3) |
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 #64B5AA | 2.40:1 | Fails | Lc -52.2 | Large or bold text, headings |
| Black text on #64B5AA | 8.73:1 | AAA | Lc 56.8 | Large or bold text, headings |
| #64B5AA text on white | 2.40:1 | Fails | Lc 47.2 | Large or bold text, headings |
| #64B5AA text on black | 8.73:1 | AAA | Lc -54.8 | 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
#C5E0DB
oklch(88.5% 0.029 183.3)
-
Step 300
300
#9CCCC4
oklch(80.9% 0.051 183.7)
-
Step 400
400 (this color)
#64B5AA
oklch(71.8% 0.082 184.3)
-
Step 500
500
#219E91
oklch(63.2% 0.105 184.2)
-
Step 600
600
#00867A
oklch(55.7% 0.099 183.9)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
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)
#64B5AA 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) | #AEADAA | 0.087 |
| Deuteranopia (no green cones) | #A0A3AB | 0.082 |
| Tritanopia (no blue cones) | #41B8B1 | 0.025 |
| Achromatopsia (no color) | #A7A7A7 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64B5AA
#64B5AA
oklch(71.8% 0.082 184.3)
- #D08F9E
#D08F9E
oklch(71.9% 0.081 4.2)
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 #64B5AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.041
- Light Sea Green #20B2AA ΔE 0.043
- Greeny Blue #42B395 ΔE 0.043
- Muted Teal #90B494 ΔE 0.051
- Turquoise Blue #06B1C4 ΔE 0.060
- Pewter #96A8A1 ΔE 0.060
- Tea #65AB7C ΔE 0.063
- Dark Sea Green #8FBC8F ΔE 0.064
Use #64B5AA 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.