#064C57
Closest named color: Dark Teal (#014D4E). oklch(38.3% 0.064 211.8), rgb(6, 76, 87).
Aa
White text reads best on this color (9.63:1).
About this color
#064C57 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.064 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.018 away. White text reads best on it, at 9.63:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.17:1 |
| White text | 9.63:1 |
Values
| HEX | #064C57 |
| RGB | rgb(6, 76, 87) |
| HSL | hsl(188, 87%, 18%) |
| OKLCH | oklch(38.3% 0.064 211.8) |
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 #064C57 | 9.63:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #064C57 | 2.17:1 | Fails | Lc 12.0 | Not readable |
| #064C57 text on white | 9.63:1 | AAA | Lc 91.9 | Preferred for body text |
| #064C57 text on black | 2.17:1 | Fails | Lc -10.5 | Not readable |
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 900.
-
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
#C6DEE3
oklch(88.4% 0.026 211.6)
-
Step 300
300
#9DC9D3
oklch(80.8% 0.048 213.1)
-
Step 400
400
#63AEBD
oklch(70.8% 0.078 212)
-
Step 500
500
#2B99AC
oklch(63.1% 0.099 211.9)
-
Step 600
600
#008294
oklch(55.7% 0.097 211.6)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005966
oklch(42.6% 0.074 211.8)
-
Step 900
900 (this color)
#064C57
oklch(38.3% 0.064 211.8)
-
Step 950
950
#082C32
oklch(27.1% 0.041 210.9)
#064C57 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) | #434958 | 0.059 |
| Deuteranopia (no green cones) | #394157 | 0.055 |
| Tritanopia (no blue cones) | #00504F | 0.022 |
| Achromatopsia (no color) | #454545 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #064C57
#064C57
oklch(38.3% 0.064 211.8)
- #61362D
#61362D
oklch(38.4% 0.064 32.7)
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 #064C57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.018
- Charcoal #264653 ΔE 0.026
- Deep Teal #00555A ΔE 0.029
- Dark Grey Blue #29465B ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.036
- Dark Blue Green #005249 ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.054
- Midnight Green #073B4C ΔE 0.056
Use #064C57 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.