#063E43
Closest named color: Midnight Green (#073B4C). oklch(33.3% 0.054 204.3), rgb(6, 62, 67).
Aa
White text reads best on this color (11.81:1).
About this color
#063E43 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.054 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.022 away. White text reads best on it, at 11.81:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.77:1 |
| White text | 11.81:1 |
Values
| HEX | #063E43 |
| RGB | rgb(6, 62, 67) |
| HSL | hsl(185, 84%, 14%) |
| OKLCH | oklch(33.3% 0.054 204.3) |
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 #063E43 | 11.81:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #063E43 | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #063E43 text on white | 11.81:1 | AAA | Lc 96.8 | Preferred for body text |
| #063E43 text on black | 1.77:1 | Fails | Lc 0.0 | 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
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A3C9CD
oklch(81% 0.041 204.3)
-
Step 400
400
#6FADB3
oklch(70.8% 0.064 203.6)
-
Step 500
500
#4398A1
oklch(63.1% 0.082 204.7)
-
Step 600
600
#17828C
oklch(55.6% 0.09 204.9)
-
Step 700
700
#016E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#0C5A61
oklch(42.8% 0.069 204.5)
-
Step 900
900 (this color)
#063E43
oklch(33.3% 0.054 204.3)
-
Step 950
950
#0F2B2E
oklch(26.9% 0.034 204.8)
#063E43 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) | #383B43 | 0.053 |
| Deuteranopia (no green cones) | #303543 | 0.049 |
| Tritanopia (no blue cones) | #00413F | 0.015 |
| Achromatopsia (no color) | #383838 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #063E43
#063E43
oklch(33.3% 0.054 204.3)
- #4E2B28
#4E2B28
oklch(33.3% 0.053 25.5)
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 #063E43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.022
- Dark Blue Grey #1F3B4D ΔE 0.031
- Onyx #343A40 ΔE 0.047
- Charcoal #264653 ΔE 0.047
- Gunmetal #293241 ΔE 0.048
- Dark Teal #014D4E ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.056
- Dark Grey Blue #29465B ΔE 0.058
Use #063E43 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.