#143445
Closest named color: Midnight Green (#073B4C). oklch(31% 0.048 234.6), rgb(20, 52, 69).
Aa
White text reads best on this color (13.06:1).
About this color
#143445 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.048 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.024 away. White text reads best on it, at 13.06:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.60:1 |
| White text | 13.06:1 |
Values
| HEX | #143445 |
| RGB | rgb(20, 52, 69) |
| HSL | hsl(201, 55%, 17%) |
| OKLCH | oklch(31% 0.048 234.6) |
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 #143445 | 13.06:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #143445 | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #143445 text on white | 13.06:1 | AAA | Lc 99.2 | Preferred for body text |
| #143445 text on black | 1.60:1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEB
oklch(88.5% 0.031 234.5)
-
Step 300
300
#9DC7E1
oklch(80.8% 0.058 235.6)
-
Step 400
400
#63AAD1
oklch(70.7% 0.092 234.2)
-
Step 500
500
#2E94C5
oklch(63.1% 0.116 234.3)
-
Step 600
600
#007DAD
oklch(55.6% 0.117 234.3)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#064764
oklch(37.6% 0.077 235.1)
-
Step 950
950 (this color)
#143445
oklch(31% 0.048 234.6)
#143445 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) | #2C3346 | 0.031 |
| Deuteranopia (no green cones) | #252F45 | 0.025 |
| Tritanopia (no blue cones) | #00383A | 0.031 |
| Achromatopsia (no color) | #313131 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #143445
#143445
oklch(31% 0.048 234.6)
- #432917
#432917
oklch(30.9% 0.049 54.6)
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 #143445, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.024
- Gunmetal #293241 ΔE 0.026
- Dark Blue Grey #1F3B4D ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.035
- Oxford Blue #1B263B ΔE 0.046
- Onyx #343A40 ΔE 0.050
- Marine #042E60 ΔE 0.057
Use #143445 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.