#003F44
Closest named color: Midnight Green (#073B4C). oklch(33.5% 0.057 203.7), rgb(0, 63, 68).
Aa
White text reads best on this color (11.70:1).
About this color
#003F44 is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.057 and its hue 204°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.023 away. White text reads best on it, at 11.70:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.79:1 |
| White text | 11.70:1 |
Values
| HEX | #003F44 |
| RGB | rgb(0, 63, 68) |
| HSL | hsl(184, 100%, 13%) |
| OKLCH | oklch(33.5% 0.057 203.7) |
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 #003F44 | 11.70:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #003F44 | 1.79:1 | Fails | Lc 7.4 | Not readable |
| #003F44 text on white | 11.70:1 | AAA | Lc 96.5 | Preferred for body text |
| #003F44 text on black | 1.79:1 | 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
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C8DEE0
oklch(88.5% 0.024 203.4)
-
Step 300
300
#A1C9CD
oklch(80.8% 0.043 203.9)
-
Step 400
400
#6BADB4
oklch(70.6% 0.068 204.4)
-
Step 500
500
#3B99A1
oklch(63.1% 0.088 203.1)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900 (this color)
#003F44
oklch(33.5% 0.057 203.7)
-
Step 950
950
#0D2C2E
oklch(27.1% 0.036 201.1)
#003F44 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) | #393C44 | 0.057 |
| Deuteranopia (no green cones) | #303544 | 0.053 |
| Tritanopia (no blue cones) | #004240 | 0.015 |
| Achromatopsia (no color) | #383838 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #003F44
#003F44
oklch(33.5% 0.057 203.7)
- #502A28
#502A28
oklch(33.4% 0.057 23.8)
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 #003F44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.023
- Dark Blue Grey #1F3B4D ΔE 0.033
- Charcoal #264653 ΔE 0.047
- Dark Teal #014D4E ΔE 0.047
- Onyx #343A40 ΔE 0.050
- Gunmetal #293241 ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.058
- Dark Grey Blue #29465B ΔE 0.058
Use #003F44 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.