#13143D
Closest named color: Navy Blue (#001146). oklch(22% 0.077 276.9), rgb(19, 20, 61).
Aa
White text reads best on this color (17.57:1).
About this color
#13143D is a very dark, moderately saturated blue. In OKLCH its lightness is 22%, its chroma 0.077 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.035 away. White text reads best on it, at 17.57:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.19:1 |
| White text | 17.57:1 |
Values
| HEX | #13143D |
| RGB | rgb(19, 20, 61) |
| HSL | hsl(239, 53%, 16%) |
| OKLCH | oklch(22% 0.077 276.9) |
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 #13143D | 17.57:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #13143D | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #13143D text on white | 17.57:1 | AAA | Lc 104.2 | Preferred for body text |
| #13143D text on black | 1.19:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D0D7FB
oklch(88.5% 0.05 276.6)
-
Step 300
300
#B1BCFC
oklch(81% 0.091 276.6)
-
Step 400
400
#8A96FA
oklch(70.7% 0.146 276.8)
-
Step 500
500
#7078F7
oklch(63% 0.187 276.9)
-
Step 600
600
#5B5DE6
oklch(55.6% 0.203 276.9)
-
Step 700
700
#4B4BC8
oklch(49% 0.189 276.9)
-
Step 800
800
#3D3FA2
oklch(42.7% 0.156 276.6)
-
Step 900
900
#343780
oklch(37.8% 0.121 277.1)
-
Step 950
950 (this color)
#13143D
oklch(22% 0.077 276.9)
#13143D 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) | #001B3E | 0.029 |
| Deuteranopia (no green cones) | #00173C | 0.027 |
| Tritanopia (no blue cones) | #001E26 | 0.066 |
| Achromatopsia (no color) | #191919 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13143D
#13143D
oklch(22% 0.077 276.9)
- #201A00
#201A00
oklch(21.8% 0.045 97.4)
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 #13143D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.035
- Rich Black #0D1B2A ΔE 0.047
- Dark Indigo #1F0954 ΔE 0.051
- Night Blue #040348 ΔE 0.054
- Midnight Purple #280137 ΔE 0.062
- Oxford Blue #1B263B ΔE 0.062
- Dark #1B2431 ΔE 0.064
- Dark Navy #000435 ΔE 0.065
Use #13143D 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.