#064655
Closest named color: Charcoal (#264653). oklch(36.5% 0.063 219), rgb(6, 70, 85).
Aa
White text reads best on this color (10.42:1).
About this color
#064655 is a dark, muted teal or cyan. In OKLCH its lightness is 37%, its chroma 0.063 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.023 away. White text reads best on it, at 10.42:1.
| Hue family | Teals and cyans |
| Lightness | dark (37%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.01:1 |
| White text | 10.42:1 |
Values
| HEX | #064655 |
| RGB | rgb(6, 70, 85) |
| HSL | hsl(191, 87%, 18%) |
| OKLCH | oklch(36.5% 0.063 219) |
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 #064655 | 10.42:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #064655 | 2.01:1 | Fails | Lc 10.1 | Not readable |
| #064655 text on white | 10.42:1 | AAA | Lc 93.8 | Preferred for body text |
| #064655 text on black | 2.01:1 | Fails | Lc -8.7 | 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
#E0ECF0
oklch(93.5% 0.014 219.6)
-
Step 200
200
#C7DEE5
oklch(88.6% 0.026 218)
-
Step 300
300
#9FC9D6
oklch(81% 0.048 218.7)
-
Step 400
400
#67ACC1
oklch(70.7% 0.076 219.5)
-
Step 500
500
#3497B1
oklch(63.1% 0.097 218.9)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C83
oklch(49.1% 0.089 219.3)
-
Step 800
800
#00586C
oklch(42.6% 0.078 220.2)
-
Step 900
900 (this color)
#064655
oklch(36.5% 0.063 219)
-
Step 950
950
#0B2B34
oklch(27% 0.04 219.8)
#064655 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) | #3D4456 | 0.054 |
| Deuteranopia (no green cones) | #333D55 | 0.047 |
| Tritanopia (no blue cones) | #004B4B | 0.028 |
| Achromatopsia (no color) | #404040 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #064655
#064655
oklch(36.5% 0.063 219)
- #5B3225
#5B3225
oklch(36.6% 0.064 38.3)
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 #064655, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.023
- Dark Teal #014D4E ΔE 0.030
- Dark Grey Blue #29465B ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.036
- Midnight Green #073B4C ΔE 0.037
- Deep Teal #00555A ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.050
- Dark Blue Green #005249 ΔE 0.051
Use #064655 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.