#003347
Closest named color: Midnight Green (#073B4C). oklch(30.1% 0.061 231.2), rgb(0, 51, 71).
Aa
White text reads best on this color (13.42:1).
About this color
#003347 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.061 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.029 away. White text reads best on it, at 13.42:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.56:1 |
| White text | 13.42:1 |
Values
| HEX | #003347 |
| RGB | rgb(0, 51, 71) |
| HSL | hsl(197, 100%, 14%) |
| OKLCH | oklch(30.1% 0.061 231.2) |
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 #003347 | 13.42:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #003347 | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #003347 text on white | 13.42:1 | AAA | Lc 99.5 | Preferred for body text |
| #003347 text on black | 1.56:1 | 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 950.
-
Step 50
50
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DDEDF6
oklch(93.7% 0.021 232.1)
-
Step 200
200
#C0DFEF
oklch(88.6% 0.04 230.2)
-
Step 300
300
#91CAE7
oklch(81% 0.072 230.8)
-
Step 400
400
#46ADDB
oklch(70.7% 0.115 230.9)
-
Step 500
500
#0096C8
oklch(63.1% 0.127 231)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950 (this color)
#003347
oklch(30.1% 0.061 231.2)
#003347 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) | #293248 | 0.041 |
| Deuteranopia (no green cones) | #202C47 | 0.034 |
| Tritanopia (no blue cones) | #00383A | 0.034 |
| Achromatopsia (no color) | #2F2F2F | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #003347
#003347
oklch(30.1% 0.061 231.2)
- #46240E
#46240E
oklch(30.1% 0.061 51.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #003347
These curated palettes and gradients contain exactly #003347. Open one to see the full color scheme around it.
Gradients
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.040
- Gunmetal #293241 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.046
- Oxford Blue #1B263B ΔE 0.046
- Marine #042E60 ΔE 0.051
- Dark #1B2431 ΔE 0.058
Use #003347 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.