#003B48
Closest named color: Midnight Green (#073B4C). oklch(32.5% 0.058 218.1), rgb(0, 59, 72).
Aa
White text reads best on this color (12.21:1).
About this color
#003B48 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.058 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.009 away. White text reads best on it, at 12.21:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.71:1 |
| White text | 12.21:1 |
Values
| HEX | #003B48 |
| RGB | rgb(0, 59, 72) |
| HSL | hsl(191, 100%, 14%) |
| OKLCH | oklch(32.5% 0.058 218.1) |
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 #003B48 | 12.21:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #003B48 | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #003B48 text on white | 12.21:1 | AAA | Lc 97.4 | Preferred for body text |
| #003B48 text on black | 1.71:1 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DDE4
oklch(88.4% 0.024 219.7)
-
Step 300
300
#A2C8D4
oklch(80.9% 0.044 219)
-
Step 400
400
#6CACBE
oklch(70.8% 0.071 217.6)
-
Step 500
500
#3F96AE
oklch(63% 0.09 219)
-
Step 600
600
#0D8099
oklch(55.5% 0.097 218.4)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#05586A
oklch(42.6% 0.075 218.4)
-
Step 900
900 (this color)
#003B48
oklch(32.5% 0.058 218.1)
-
Step 950
950
#0E2B32
oklch(27.1% 0.037 216.1)
#003B48 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) | #333949 | 0.050 |
| Deuteranopia (no green cones) | #2A3248 | 0.046 |
| Tritanopia (no blue cones) | #003F3F | 0.025 |
| Achromatopsia (no color) | #353535 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #003B48
#003B48
oklch(32.5% 0.058 218.1)
- #4D291D
#4D291D
oklch(32.5% 0.058 39.1)
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 #003B48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.009
- Dark Blue Grey #1F3B4D ΔE 0.026
- Gunmetal #293241 ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.043
- Onyx #343A40 ΔE 0.051
- Charcoal #264653 ΔE 0.053
- Space Cadet #2B2D42 ΔE 0.056
- Dark Grey Blue #29465B ΔE 0.060
Use #003B48 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.