#64B4AC
Closest named color: Topaz (#13BBAF). oklch(71.7% 0.08 187.2), rgb(100, 180, 172).
Aa
Black text reads best on this color (8.66:1).
About this color
#64B4AC is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 72%, its chroma 0.080 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.043 away. Black text reads best on it, at 8.66:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.66:1 |
| White text | 2.42:1 |
Values
| HEX | #64B4AC |
| RGB | rgb(100, 180, 172) |
| HSL | hsl(174, 35%, 55%) |
| OKLCH | oklch(71.7% 0.08 187.2) |
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 #64B4AC | 2.42:1 | Fails | Lc -52.6 | Large or bold text, headings |
| Black text on #64B4AC | 8.66:1 | AAA | Lc 56.4 | Large or bold text, headings |
| #64B4AC text on white | 2.42:1 | Fails | Lc 47.6 | Large or bold text, headings |
| #64B4AC text on black | 8.66:1 | 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
#C6DFDC
oklch(88.4% 0.027 187.9)
-
Step 300
300
#9CCCC6
oklch(81% 0.051 186.7)
-
Step 400
400 (this color)
#64B4AC
oklch(71.7% 0.08 187.2)
-
Step 500
500
#239D94
oklch(63.1% 0.102 187.3)
-
Step 600
600
#00857D
oklch(55.5% 0.097 187.4)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#004D48
oklch(37.8% 0.066 187.3)
-
Step 950
950
#062D2A
oklch(27% 0.042 187.4)
#64B4AC 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) | #ADACAC | 0.086 |
| Deuteranopia (no green cones) | #9FA2AD | 0.081 |
| Tritanopia (no blue cones) | #40B7B1 | 0.025 |
| Achromatopsia (no color) | #A6A6A6 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64B4AC
#64B4AC
oklch(71.7% 0.08 187.2)
- #D08F9B
#D08F9B
oklch(71.8% 0.08 7.1)
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 #64B4AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.043
- Light Sea Green #20B2AA ΔE 0.043
- Greeny Blue #42B395 ΔE 0.046
- Muted Teal #90B494 ΔE 0.054
- Turquoise Blue #06B1C4 ΔE 0.057
- Pewter #96A8A1 ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.060
- Greyblue #77A1B5 ΔE 0.062
Use #64B4AC 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.