#64BCBA
Closest named color: Topaz (#13BBAF). oklch(74% 0.085 193.5), rgb(100, 188, 186).
Aa
Black text reads best on this color (9.44:1).
About this color
#64BCBA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.085 and its hue 194°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.047 away. Black text reads best on it, at 9.44:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.44:1 |
| White text | 2.22:1 |
Values
| HEX | #64BCBA |
| RGB | rgb(100, 188, 186) |
| HSL | hsl(179, 40%, 56%) |
| OKLCH | oklch(74% 0.085 193.5) |
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 #64BCBA | 2.22:1 | Fails | Lc -48.4 | Large or bold text, headings |
| Black text on #64BCBA | 9.44:1 | AAA | Lc 60.3 | Content text, not long reading |
| #64BCBA text on white | 2.22:1 | Fails | Lc 43.6 | Non-text elements, placeholder text |
| #64BCBA text on black | 9.44:1 | AAA | Lc -58.5 | 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
#DFEDED
oklch(93.6% 0.015 196.9)
-
Step 200
200
#C4E0DF
oklch(88.6% 0.03 194)
-
Step 300
300
#99CCCA
oklch(80.9% 0.053 193.1)
-
Step 400
400 (this color)
#64BCBA
oklch(74% 0.085 193.5)
-
Step 500
500
#009D9C
oklch(63% 0.108 194)
-
Step 600
600
#008483
oklch(55.5% 0.095 193.8)
-
Step 700
700
#006F6E
oklch(49% 0.084 193.7)
-
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
#022D2D
oklch(27% 0.045 194.8)
#64BCBA 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) | #B3B4BA | 0.090 |
| Deuteranopia (no green cones) | #A3A9BB | 0.084 |
| Tritanopia (no blue cones) | #33C1BB | 0.031 |
| Achromatopsia (no color) | #AEAEAE | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64BCBA
#64BCBA
oklch(74% 0.085 193.5)
- #DB959B
#DB959B
oklch(74.1% 0.085 13.7)
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 #64BCBA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.047
- Medium Turquoise #48D1CC ΔE 0.056
- Dark Turquoise #00CED1 ΔE 0.057
- Light Sea Green #20B2AA ΔE 0.057
- Pale Teal #82CBB2 ΔE 0.058
- Medium Aquamarine #66CDAA ΔE 0.061
- Muted Teal #90B494 ΔE 0.061
- Turquoise Blue #06B1C4 ΔE 0.061
Use #64BCBA 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.