#13123C
Closest named color: Navy Blue (#001146). oklch(21.4% 0.078 278.5), rgb(19, 18, 60).
Aa
White text reads best on this color (17.80:1).
About this color
#13123C is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.078 and its hue 279°. 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 17.80:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.17:1 |
| White text | 17.80:1 |
Values
| HEX | #13123C |
| RGB | rgb(19, 18, 60) |
| HSL | hsl(241, 54%, 15%) |
| OKLCH | oklch(21.4% 0.078 278.5) |
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 #13123C | 17.80:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #13123C | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #13123C text on white | 17.80:1 | AAA | Lc 104.4 | Preferred for body text |
| #13123C 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D1D6FC
oklch(88.4% 0.053 279.4)
-
Step 300
300
#B3BBFC
oklch(80.9% 0.092 278.7)
-
Step 400
400
#8D95FB
oklch(70.7% 0.148 278.5)
-
Step 500
500
#7476F8
oklch(63% 0.19 278.8)
-
Step 600
600
#5F5BE7
oklch(55.6% 0.205 278.6)
-
Step 700
700
#4F49C9
oklch(49% 0.192 278.7)
-
Step 800
800
#403DA3
oklch(42.7% 0.16 278.5)
-
Step 900
900
#353681
oklch(37.7% 0.123 278.1)
-
Step 950
950 (this color)
#13123C
oklch(21.4% 0.078 278.5)
#13123C 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) | #00193D | 0.030 |
| Deuteranopia (no green cones) | #00163B | 0.028 |
| Tritanopia (no blue cones) | #001C24 | 0.067 |
| Achromatopsia (no color) | #181818 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13123C
#13123C
oklch(21.4% 0.078 278.5)
- #1F1900
#1F1900
oklch(21.4% 0.044 97.1)
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 #13123C, 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 0.050
- Night Blue #040348 ΔE 0.051
- Dark Indigo #1F0954 ΔE 0.051
- Midnight Purple #280137 ΔE 0.059
- Dark Navy #000435 ΔE 0.061
- Very Dark Purple #2A0134 ΔE 0.064
- Oxford Blue #1B263B ΔE 0.068
Use #13123C 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.