#13455B
Closest named color: Dark Grey Blue (#29465B). oklch(36.9% 0.064 231.4), rgb(19, 69, 91).
Aa
White text reads best on this color (10.34:1).
About this color
#13455B is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.064 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.021 away. White text reads best on it, at 10.34:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.03:1 |
| White text | 10.34:1 |
Values
| HEX | #13455B |
| RGB | rgb(19, 69, 91) |
| HSL | hsl(198, 65%, 22%) |
| OKLCH | oklch(36.9% 0.064 231.4) |
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 #13455B | 10.34:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #13455B | 2.03:1 | Fails | Lc 10.2 | Not readable |
| #13455B text on white | 10.34:1 | AAA | Lc 93.7 | Preferred for body text |
| #13455B text on black | 2.03:1 | Fails | Lc -8.8 | 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 900.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C8DDE8
oklch(88.5% 0.027 230.4)
-
Step 300
300
#A2C7DA
oklch(80.9% 0.048 230.4)
-
Step 400
400
#6DAAC8
oklch(70.8% 0.077 230.6)
-
Step 500
500
#4194BA
oklch(63.1% 0.098 231)
-
Step 600
600
#177DA6
oklch(55.5% 0.106 231.7)
-
Step 700
700
#016A8F
oklch(49.2% 0.099 231.4)
-
Step 800
800
#0C5674
oklch(42.6% 0.082 232)
-
Step 900
900 (this color)
#13455B
oklch(36.9% 0.064 231.4)
-
Step 950
950
#0F2A37
oklch(27.1% 0.041 231.9)
#13455B 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) | #3A445C | 0.043 |
| Deuteranopia (no green cones) | #303D5B | 0.037 |
| Tritanopia (no blue cones) | #004B4C | 0.039 |
| Achromatopsia (no color) | #404040 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13455B
#13455B
oklch(36.9% 0.064 231.4)
- #5A351E
#5A351E
oklch(36.9% 0.064 51.5)
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 #13455B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.021
- Charcoal #264653 ΔE 0.022
- Dark Blue Grey #1F3B4D ΔE 0.035
- Midnight Green #073B4C ΔE 0.040
- Dark Teal #014D4E ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.053
- Deep Teal #00555A ΔE 0.053
Use #13455B 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.