#003D4E
Closest named color: Midnight Green (#073B4C). oklch(33.4% 0.063 223.5), rgb(0, 61, 78).
Aa
White text reads best on this color (11.81:1).
About this color
#003D4E is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.063 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.007 away. White text reads best on it, at 11.81:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.77:1 |
| White text | 11.81:1 |
Values
| HEX | #003D4E |
| RGB | rgb(0, 61, 78) |
| HSL | hsl(193, 100%, 15%) |
| OKLCH | oklch(33.4% 0.063 223.5) |
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 #003D4E | 11.81:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #003D4E | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #003D4E text on white | 11.81:1 | AAA | Lc 96.7 | Preferred for body text |
| #003D4E 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C8DDE6
oklch(88.5% 0.026 225.3)
-
Step 300
300
#A1C8D7
oklch(81% 0.046 223.3)
-
Step 400
400
#6AABC3
oklch(70.7% 0.075 223.6)
-
Step 500
500
#3B96B4
oklch(63.1% 0.096 223.4)
-
Step 600
600
#0080A0
oklch(55.7% 0.104 223.4)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900 (this color)
#003D4E
oklch(33.4% 0.063 223.5)
-
Step 950
950
#0D2B35
oklch(27.2% 0.04 223.2)
#003D4E 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) | #333B4F | 0.048 |
| Deuteranopia (no green cones) | #2A354E | 0.042 |
| Tritanopia (no blue cones) | #004243 | 0.030 |
| Achromatopsia (no color) | #383838 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #003D4E
#003D4E
oklch(33.4% 0.063 223.5)
- #512B1A
#512B1A
oklch(33.5% 0.063 44.2)
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 #003D4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.007
- Dark Blue Grey #1F3B4D ΔE 0.022
- Prussian Blue #1D3557 ΔE 0.039
- Charcoal #264653 ΔE 0.045
- Gunmetal #293241 ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.051
- Onyx #343A40 ΔE 0.052
- Dark Teal #014D4E ΔE 0.056
Use #003D4E 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.