#13103F
Closest named color: Navy Blue (#001146). oklch(21.3% 0.086 279), rgb(19, 16, 63).
Aa
White text reads best on this color (17.89:1).
About this color
#13103F is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.086 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.031 away. White text reads best on it, at 17.89:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.17:1 |
| White text | 17.89:1 |
Values
| HEX | #13103F |
| RGB | rgb(19, 16, 63) |
| HSL | hsl(244, 59%, 15%) |
| OKLCH | oklch(21.3% 0.086 279) |
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 #13103F | 17.89:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #13103F | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #13103F text on white | 17.89:1 | AAA | Lc 104.4 | Preferred for body text |
| #13103F text on black | 1.17:1 | 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
#F3F5FF
oklch(97.2% 0.013 277.1)
-
Step 100
100
#E5E8FE
oklch(93.5% 0.03 279.6)
-
Step 200
200
#D0D6FF
oklch(88.5% 0.057 278.6)
-
Step 300
300
#B3BAFF
oklch(80.8% 0.098 279.5)
-
Step 400
400
#8D94FF
oklch(70.8% 0.155 278.8)
-
Step 500
500
#7474FF
oklch(63.2% 0.201 278.9)
-
Step 600
600
#5F55F2
oklch(55.6% 0.226 278.9)
-
Step 700
700
#5043D3
oklch(49% 0.211 279.3)
-
Step 800
800
#4139AB
oklch(42.8% 0.175 279.1)
-
Step 900
900
#363387
oklch(37.7% 0.136 279.2)
-
Step 950
950 (this color)
#13103F
oklch(21.3% 0.086 279)
#13103F 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) | #001940 | 0.033 |
| Deuteranopia (no green cones) | #00153E | 0.029 |
| Tritanopia (no blue cones) | #001C25 | 0.073 |
| Achromatopsia (no color) | #171717 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13103F
#13103F
oklch(21.3% 0.086 279)
- #1E1900
#1E1900
oklch(21.3% 0.044 99.3)
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 #13103F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.031
- Night Blue #040348 ΔE 0.045
- Dark Indigo #1F0954 ΔE 0.046
- Rich Black #0D1B2A ΔE 0.057
- Midnight Purple #280137 ΔE 0.058
- Dark Navy #000435 ΔE 0.059
- Very Dark Purple #2A0134 ΔE 0.064
- Very Dark Blue #000133 ΔE 0.070
Use #13103F 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.