#13305A
Closest named color: Marine (#042E60). oklch(31.2% 0.083 258), rgb(19, 48, 90).
Aa
White text reads best on this color (13.14:1).
About this color
#13305A is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.083 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.017 away. White text reads best on it, at 13.14:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.59:1 |
| White text | 13.14:1 |
Values
| HEX | #13305A |
| RGB | rgb(19, 48, 90) |
| HSL | hsl(215, 65%, 21%) |
| OKLCH | oklch(31.2% 0.083 258) |
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 #13305A | 13.14:1 | AAA | Lc -102.5 | Preferred for body text |
| Black text on #13305A | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #13305A text on white | 13.14:1 | AAA | Lc 99.2 | Preferred for body text |
| #13305A text on black | 1.59:1 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFD
oklch(93.6% 0.028 256.5)
-
Step 200
200
#C3DBFE
oklch(88.5% 0.055 257.7)
-
Step 300
300
#9AC3FF
oklch(81% 0.096 257.8)
-
Step 400
400
#60A1FF
oklch(70.8% 0.154 257.7)
-
Step 500
500
#2D85FF
oklch(63.2% 0.199 257.9)
-
Step 600
600
#006CE8
oklch(55.6% 0.205 258)
-
Step 700
700
#005AC4
oklch(49% 0.181 258)
-
Step 800
800
#004AA3
oklch(42.8% 0.158 257.9)
-
Step 900
900
#073E85
oklch(37.7% 0.131 257.9)
-
Step 950
950 (this color)
#13305A
oklch(31.2% 0.083 258)
#13305A 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) | #1B345C | 0.016 |
| Deuteranopia (no green cones) | #0E2D59 | 0.011 |
| Tritanopia (no blue cones) | #003A40 | 0.066 |
| Achromatopsia (no color) | #303030 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13305A
#13305A
oklch(31.2% 0.083 258)
- #432C00
#432C00
oklch(31.3% 0.065 77.8)
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 #13305A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.017
- Prussian Blue #1D3557 ΔE 0.022
- Marine Blue #01386A ΔE 0.034
- Midnight Green #073B4C ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.050
- Space Cadet #2B2D42 ΔE 0.050
- Gunmetal #293241 ΔE 0.054
- Oxford Blue #1B263B ΔE 0.059
Use #13305A 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.