#064451
Closest named color: Charcoal (#264653). oklch(35.7% 0.061 216.7), rgb(6, 68, 81).
Aa
White text reads best on this color (10.75:1).
About this color
#064451 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.061 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.026 away. White text reads best on it, at 10.75:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.95:1 |
| White text | 10.75:1 |
Values
| HEX | #064451 |
| RGB | rgb(6, 68, 81) |
| HSL | hsl(190, 86%, 17%) |
| OKLCH | oklch(35.7% 0.061 216.7) |
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 #064451 | 10.75:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #064451 | 1.95:1 | Fails | Lc 9.4 | Not readable |
| #064451 text on white | 10.75:1 | AAA | Lc 94.5 | Preferred for body text |
| #064451 text on black | 1.95:1 | Fails | Lc -8.0 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C7DEE4
oklch(88.5% 0.026 215.2)
-
Step 300
300
#A0C9D4
oklch(81% 0.046 215.9)
-
Step 400
400
#69ACBE
oklch(70.6% 0.073 216.8)
-
Step 500
500
#3897AE
oklch(63% 0.093 216.9)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900 (this color)
#064451
oklch(35.7% 0.061 216.7)
-
Step 950
950
#0C2B33
oklch(27% 0.039 217.8)
#064451 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) | #3B4252 | 0.052 |
| Deuteranopia (no green cones) | #323B51 | 0.047 |
| Tritanopia (no blue cones) | #004948 | 0.027 |
| Achromatopsia (no color) | #3E3E3E | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #064451
#064451
oklch(35.7% 0.061 216.7)
- #583025
#583025
oklch(35.7% 0.062 36.2)
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 #064451, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.026
- Midnight Green #073B4C ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.031
- Dark Teal #014D4E ΔE 0.033
- Dark Grey Blue #29465B ΔE 0.035
- Onyx #343A40 ΔE 0.052
- Dark Blue Green #005249 ΔE 0.054
- Dark Slate Gray #2F4F4F ΔE 0.054
Use #064451 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.