#13103D
Closest named color: Navy Blue (#001146). oklch(21.1% 0.083 279.5), rgb(19, 16, 61).
Aa
White text reads best on this color (17.96:1).
About this color
#13103D is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.083 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.033 away. White text reads best on it, at 17.96:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.16:1 |
| White text | 17.96:1 |
Values
| HEX | #13103D |
| RGB | rgb(19, 16, 61) |
| HSL | hsl(244, 58%, 15%) |
| OKLCH | oklch(21.1% 0.083 279.5) |
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 #13103D | 17.96:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #13103D | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #13103D text on white | 17.96:1 | AAA | Lc 104.5 | Preferred for body text |
| #13103D text on black | 1.16:1 | 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
#E5E8FD
oklch(93.5% 0.029 279.4)
-
Step 200
200
#D1D6FE
oklch(88.5% 0.055 279.6)
-
Step 300
300
#B3BAFF
oklch(80.8% 0.098 279.5)
-
Step 400
400
#8E93FF
oklch(70.6% 0.156 279.6)
-
Step 500
500
#7573FE
oklch(63% 0.201 279.6)
-
Step 600
600
#6157EE
oklch(55.7% 0.219 279.5)
-
Step 700
700
#5145CF
oklch(49.1% 0.204 279.7)
-
Step 800
800
#423AA7
oklch(42.7% 0.168 279.8)
-
Step 900
900
#373484
oklch(37.7% 0.13 279.8)
-
Step 950
950 (this color)
#13103D
oklch(21.1% 0.083 279.5)
#13103D 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) | #00193E | 0.033 |
| Deuteranopia (no green cones) | #00153C | 0.029 |
| Tritanopia (no blue cones) | #001B24 | 0.070 |
| Achromatopsia (no color) | #171717 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13103D
#13103D
oklch(21.1% 0.083 279.5)
- #1D1900
#1D1900
oklch(21.2% 0.044 101.4)
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 #13103D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.033
- Night Blue #040348 ΔE 0.047
- Dark Indigo #1F0954 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.055
- Midnight Purple #280137 ΔE 0.057
- Dark Navy #000435 ΔE 0.058
- Very Dark Purple #2A0134 ΔE 0.063
- Very Dark Blue #000133 ΔE 0.069
Use #13103D 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.