#64BDB5
Closest named color: Topaz (#13BBAF). oklch(74.1% 0.087 187.9), rgb(100, 189, 181).
Aa
Black text reads best on this color (9.48:1).
About this color
#64BDB5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 74%, its chroma 0.087 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.045 away. Black text reads best on it, at 9.48:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (74%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 9.48:1 |
| White text | 2.21:1 |
Values
| HEX | #64BDB5 |
| RGB | rgb(100, 189, 181) |
| HSL | hsl(175, 40%, 57%) |
| OKLCH | oklch(74.1% 0.087 187.9) |
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 #64BDB5 | 2.21:1 | Fails | Lc -48.2 | Large or bold text, headings |
| Black text on #64BDB5 | 9.48:1 | AAA | Lc 60.5 | Content text, not long reading |
| #64BDB5 text on white | 2.21:1 | Fails | Lc 43.4 | Non-text elements, placeholder text |
| #64BDB5 text on black | 9.48:1 | AAA | Lc -58.7 | 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
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DFEDEC
oklch(93.5% 0.015 191.8)
-
Step 200
200
#C4E0DD
oklch(88.5% 0.03 188.8)
-
Step 300
300
#99CCC7
oklch(80.8% 0.054 188.7)
-
Step 400
400 (this color)
#64BDB5
oklch(74.1% 0.087 187.9)
-
Step 500
500
#009E96
oklch(63% 0.109 188.5)
-
Step 600
600
#00857E
oklch(55.6% 0.097 188.3)
-
Step 700
700
#00706A
oklch(49.1% 0.085 188.3)
-
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
#022D2A
oklch(26.8% 0.045 187.7)
#64BDB5 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) | #B5B5B5 | 0.093 |
| Deuteranopia (no green cones) | #A6AAB6 | 0.087 |
| Tritanopia (no blue cones) | #37C1BA | 0.028 |
| Achromatopsia (no color) | #AEAEAE | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64BDB5
#64BDB5
oklch(74.1% 0.087 187.9)
- #DB94A1
#DB94A1
oklch(74% 0.087 7.4)
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 #64BDB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.045
- Pale Teal #82CBB2 ΔE 0.053
- Medium Aquamarine #66CDAA ΔE 0.053
- Medium Turquoise #48D1CC ΔE 0.055
- Muted Teal #90B494 ΔE 0.056
- Light Sea Green #20B2AA ΔE 0.057
- Dark Turquoise #00CED1 ΔE 0.057
- Greeny Blue #42B395 ΔE 0.059
Use #64BDB5 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.