#36448D
Closest named color: Cobalt (#1E488F). oklch(41.6% 0.121 272), rgb(54, 68, 141).
Aa
White text reads best on this color (8.86:1).
About this color
#36448D is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.121 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.026 away. White text reads best on it, at 8.86:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.36:1 |
| White text | 8.86:1 |
Values
| HEX | #36448D |
| RGB | rgb(54, 68, 141) |
| HSL | hsl(230, 45%, 38%) |
| OKLCH | oklch(41.6% 0.121 272) |
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 #36448D | 8.86:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #36448D | 2.36:1 | Fails | Lc 13.9 | Not readable |
| #36448D text on white | 8.86:1 | AAA | Lc 90.0 | Preferred for body text |
| #36448D text on black | 2.36:1 | Fails | Lc -12.2 | 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 800.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D0D8F4
oklch(88.5% 0.04 272.9)
-
Step 300
300
#B0BFEF
oklch(81% 0.07 271.2)
-
Step 400
400
#889CE8
oklch(70.8% 0.114 272)
-
Step 500
500
#6B81E0
oklch(63% 0.145 271.8)
-
Step 600
600
#5569CE
oklch(55.7% 0.157 272)
-
Step 700
700
#4556B3
oklch(49% 0.148 272.1)
-
Step 800
800 (this color)
#36448D
oklch(41.6% 0.121 272)
-
Step 900
900
#303C73
oklch(37.6% 0.095 271.9)
-
Step 950
950
#1C2444
oklch(27.1% 0.06 271.3)
#36448D 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) | #1C4E90 | 0.034 |
| Deuteranopia (no green cones) | #08468B | 0.039 |
| Tritanopia (no blue cones) | #005562 | 0.105 |
| Achromatopsia (no color) | #4A4A4A | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #36448D
#36448D
oklch(41.6% 0.121 272)
- #5D4A00
#5D4A00
oklch(41.7% 0.085 91.9)
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 #36448D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.026
- Blueberry #464196 ΔE 0.029
- Dark Slate Blue #483D8B ΔE 0.030
- Dusk Blue #26538D ΔE 0.043
- Light Navy #155084 ΔE 0.047
- Twilight Blue #0A437A ΔE 0.053
- Twilight #4E518B ΔE 0.054
- Deep Sea Blue #015482 ΔE 0.061
Use #36448D 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.