#64AFBA
Closest named color: Greyblue (#77A1B5). oklch(71% 0.076 207.7), rgb(100, 175, 186).
Aa
Black text reads best on this color (8.38:1).
About this color
#64AFBA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.076 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.040 away. Black text reads best on it, at 8.38:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.38:1 |
| White text | 2.50:1 |
Values
| HEX | #64AFBA |
| RGB | rgb(100, 175, 186) |
| HSL | hsl(188, 38%, 56%) |
| OKLCH | oklch(71% 0.076 207.7) |
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 #64AFBA | 2.50:1 | Fails | Lc -54.1 | Large or bold text, headings |
| Black text on #64AFBA | 8.38:1 | AAA | Lc 55.0 | Large or bold text, headings |
| #64AFBA text on white | 2.50:1 | Fails | Lc 49.0 | Large or bold text, headings |
| #64AFBA text on black | 8.38:1 | AAA | Lc -52.9 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0EDEF
oklch(93.7% 0.014 207.9)
-
Step 200
200
#C6DEE2
oklch(88.4% 0.026 208.7)
-
Step 300
300
#9DCAD1
oklch(80.9% 0.048 208)
-
Step 400
400 (this color)
#64AFBA
oklch(71% 0.076 207.7)
-
Step 500
500
#2B9AA8
oklch(63.2% 0.097 207.5)
-
Step 600
600
#008290
oklch(55.5% 0.095 208)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#034B53
oklch(37.8% 0.064 207.3)
-
Step 950
950
#082C31
oklch(27.1% 0.04 208.4)
#64AFBA 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) | #A4AABB | 0.074 |
| Deuteranopia (no green cones) | #969FBA | 0.068 |
| Tritanopia (no blue cones) | #38B5B2 | 0.039 |
| Achromatopsia (no color) | #A4A4A4 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64AFBA
#64AFBA
oklch(71% 0.076 207.7)
- #CD8F87
#CD8F87
oklch(70.9% 0.077 27.3)
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 #64AFBA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.040
- Bluegrey #85A3B2 ΔE 0.044
- Turquoise Blue #06B1C4 ΔE 0.045
- Light Sea Green #20B2AA ΔE 0.052
- Bluey Grey #89A0B0 ΔE 0.052
- Cadet Blue #5F9EA0 ΔE 0.054
- Cool Steel #97A7B3 ΔE 0.058
- Topaz #13BBAF ΔE 0.058
Use #64AFBA 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.