#063F45
Closest named color: Midnight Green (#073B4C). oklch(33.7% 0.055 206), rgb(6, 63, 69).
Aa
White text reads best on this color (11.63:1).
About this color
#063F45 is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.055 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.021 away. White text reads best on it, at 11.63:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.80:1 |
| White text | 11.63:1 |
Values
| HEX | #063F45 |
| RGB | rgb(6, 63, 69) |
| HSL | hsl(186, 84%, 15%) |
| OKLCH | oklch(33.7% 0.055 206) |
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 #063F45 | 11.63:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #063F45 | 1.80:1 | Fails | Lc 7.5 | Not readable |
| #063F45 text on white | 11.63:1 | AAA | Lc 96.4 | Preferred for body text |
| #063F45 text on black | 1.80:1 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE0
oklch(88.6% 0.023 203.7)
-
Step 300
300
#A3C9CE
oklch(81% 0.041 206.2)
-
Step 400
400
#6EADB5
oklch(70.8% 0.066 206)
-
Step 500
500
#4198A2
oklch(63.1% 0.084 205.6)
-
Step 600
600
#13828D
oklch(55.5% 0.091 205.7)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#095A62
oklch(42.8% 0.07 205.7)
-
Step 900
900 (this color)
#063F45
oklch(33.7% 0.055 206)
-
Step 950
950
#0F2B2F
oklch(26.9% 0.034 207.9)
#063F45 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) | #393C45 | 0.054 |
| Deuteranopia (no green cones) | #303645 | 0.048 |
| Tritanopia (no blue cones) | #004241 | 0.015 |
| Achromatopsia (no color) | #393939 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #063F45
#063F45
oklch(33.7% 0.055 206)
- #502B28
#502B28
oklch(33.6% 0.056 25.4)
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 #063F45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.021
- Dark Blue Grey #1F3B4D ΔE 0.029
- Charcoal #264653 ΔE 0.043
- Dark Teal #014D4E ΔE 0.046
- Onyx #343A40 ΔE 0.046
- Gunmetal #293241 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.055
Use #063F45 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.