#64AEC9
Closest named color: Greyblue (#77A1B5). oklch(71.3% 0.084 223.7), rgb(100, 174, 201).
Aa
Black text reads best on this color (8.43:1).
About this color
#64AEC9 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.084 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.041 away. Black text reads best on it, at 8.43:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 8.43:1 |
| White text | 2.48:1 |
Values
| HEX | #64AEC9 |
| RGB | rgb(100, 174, 201) |
| HSL | hsl(196, 48%, 59%) |
| OKLCH | oklch(71.3% 0.084 223.7) |
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 #64AEC9 | 2.48:1 | Fails | Lc -53.8 | Large or bold text, headings |
| Black text on #64AEC9 | 8.43:1 | AAA | Lc 55.3 | Large or bold text, headings |
| #64AEC9 text on white | 2.48:1 | Fails | Lc 48.7 | Large or bold text, headings |
| #64AEC9 text on black | 8.43:1 | AAA | Lc -53.2 | 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
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C6DEE7
oklch(88.6% 0.028 222.3)
-
Step 300
300
#9DC9DA
oklch(81% 0.052 223.5)
-
Step 400
400 (this color)
#64AEC9
oklch(71.3% 0.084 223.7)
-
Step 500
500
#2997B9
oklch(63.1% 0.107 223.7)
-
Step 600
600
#0080A0
oklch(55.7% 0.104 223.4)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#02495D
oklch(37.7% 0.07 224.1)
-
Step 950
950
#082B36
oklch(27% 0.044 223.1)
#64AEC9 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) | #9FABCA | 0.067 |
| Deuteranopia (no green cones) | #909FC9 | 0.060 |
| Tritanopia (no blue cones) | #2AB6B7 | 0.055 |
| Achromatopsia (no color) | #A4A4A4 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64AEC9
#64AEC9
oklch(71.3% 0.084 223.7)
- #CF9278
#CF9278
oklch(71.3% 0.083 44)
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 #64AEC9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.041
- Bluegrey #85A3B2 ΔE 0.047
- Turquoise Blue #06B1C4 ΔE 0.047
- Bluey Grey #89A0B0 ΔE 0.054
- Cool Steel #97A7B3 ΔE 0.060
- Cadet Blue #5F9EA0 ΔE 0.067
- Cool Grey #95A3A6 ΔE 0.068
- Cool Gray #8D99AE ΔE 0.069
Use #64AEC9 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.