#364E91
Closest named color: Dusk Blue (#26538D). oklch(44% 0.114 266.9), rgb(54, 78, 145).
Aa
White text reads best on this color (7.90:1).
About this color
#364E91 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.114 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.022 away. White text reads best on it, at 7.90:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #364E91 |
| RGB | rgb(54, 78, 145) |
| HSL | hsl(224, 46%, 39%) |
| OKLCH | oklch(44% 0.114 266.9) |
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 #364E91 | 7.90:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #364E91 | 2.65:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #364E91 text on white | 7.90:1 | AAA | Lc 87.2 | Fine for body text |
| #364E91 text on black | 2.65:1 | Fails | Lc -14.9 | 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
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CED9F2
oklch(88.5% 0.036 266.7)
-
Step 300
300
#ADC0ED
oklch(80.9% 0.067 267)
-
Step 400
400
#829EE4
oklch(70.6% 0.108 267)
-
Step 500
500
#6485DC
oklch(63.2% 0.137 266.8)
-
Step 600
600
#4C6DC9
oklch(55.7% 0.147 266.8)
-
Step 700
700
#3D5AAE
oklch(49% 0.138 266.9)
-
Step 800
800 (this color)
#364E91
oklch(44% 0.114 266.9)
-
Step 900
900
#2C3F70
oklch(37.8% 0.087 266.3)
-
Step 950
950
#1A2542
oklch(27% 0.056 266.9)
#364E91 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) | #2E5694 | 0.023 |
| Deuteranopia (no green cones) | #204D90 | 0.023 |
| Tritanopia (no blue cones) | #005D68 | 0.098 |
| Achromatopsia (no color) | #515151 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #364E91
#364E91
oklch(44% 0.114 266.9)
- #684E00
#684E00
oklch(43.9% 0.09 86.4)
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 #364E91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.022
- Cobalt #1E488F ΔE 0.032
- Twilight #4E518B ΔE 0.036
- Light Navy #155084 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.039
- Blueberry #464196 ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.041
- Dusk #4E5481 ΔE 0.048
Use #364E91 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.