#64808D
Closest named color: Grey Blue (#647D8E). oklch(58.3% 0.038 227.9), rgb(100, 128, 141).
Aa
Black text reads best on this color (5.01:1).
About this color
#64808D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 58%, its chroma 0.038 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.010 away. Black text reads best on it, at 5.01:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #64808D |
| RGB | rgb(100, 128, 141) |
| HSL | hsl(199, 17%, 47%) |
| OKLCH | oklch(58.3% 0.038 227.9) |
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 #64808D | 4.18:1 | AA large text | Lc -74.4 | Content text, not long reading |
| Black text on #64808D | 5.01:1 | AA | Lc 35.2 | Non-text elements, placeholder text |
| #64808D text on white | 4.18:1 | AA large text | Lc 68.9 | Content text, not long reading |
| #64808D text on black | 5.01:1 | AA | Lc -32.8 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E7EAEC
oklch(93.5% 0.004 236.5)
-
Step 200
200
#D3DADE
oklch(88.4% 0.009 232.4)
-
Step 300
300
#B6C3C9
oklch(80.9% 0.017 227)
-
Step 400
400
#90A4AE
oklch(70.6% 0.027 229.3)
-
Step 500
500
#748E9A
oklch(63.1% 0.035 227.6)
-
Step 600
600 (this color)
#64808D
oklch(58.3% 0.038 227.9)
-
Step 700
700
#4C6571
oklch(49.1% 0.035 228.9)
-
Step 800
800
#3E525C
oklch(42.6% 0.03 229.9)
-
Step 900
900
#35444B
oklch(37.6% 0.023 228)
-
Step 950
950
#1F282C
oklch(27% 0.015 226.6)
#64808D 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) | #797F8E | 0.029 |
| Deuteranopia (no green cones) | #737A8D | 0.025 |
| Tritanopia (no blue cones) | #578484 | 0.026 |
| Achromatopsia (no color) | #7C7C7C | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64808D
#64808D
oklch(58.3% 0.038 227.9)
- #8F7568
#8F7568
oklch(58.4% 0.038 48)
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 #64808D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.010
- Battleship Grey #6B7C85 ΔE 0.015
- Steel Grey #6F828A ΔE 0.017
- Slate Gray #708090 ΔE 0.017
- Steel #738595 ΔE 0.028
- Battleship Gray #6C757D ΔE 0.034
- Light Slate Gray #778899 ΔE 0.039
- Stormy Blue #507B9C ΔE 0.039
Use #64808D 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.