#364FA1
Closest named color: Dusk Blue (#26538D). oklch(45.4% 0.136 267.9), rgb(54, 79, 161).
Aa
White text reads best on this color (7.52:1).
About this color
#364FA1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.136 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.040 away. White text reads best on it, at 7.52:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.78:1 |
| White text | 7.52:1 |
Values
| HEX | #364FA1 |
| RGB | rgb(54, 79, 161) |
| HSL | hsl(226, 50%, 42%) |
| OKLCH | oklch(45.4% 0.136 267.9) |
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 #364FA1 | 7.52:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #364FA1 | 2.78:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #364FA1 text on white | 7.52:1 | AAA | Lc 85.9 | Fine for body text |
| #364FA1 text on black | 2.78:1 | Fails | Lc -16.2 | Dividers and decoration only |
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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CCD9F7
oklch(88.5% 0.044 266.9)
-
Step 300
300
#AABFF5
oklch(80.8% 0.08 268.1)
-
Step 400
400
#7E9DF0
oklch(70.7% 0.127 267.6)
-
Step 500
500
#5F82EB
oklch(63.2% 0.162 267.7)
-
Step 600
600
#4768D9
oklch(55.5% 0.177 267.9)
-
Step 700
700
#3956BC
oklch(49% 0.164 267.9)
-
Step 800
800 (this color)
#364FA1
oklch(45.4% 0.136 267.9)
-
Step 900
900
#293D79
oklch(37.8% 0.105 267.4)
-
Step 950
950
#182447
oklch(27% 0.067 267.5)
#364FA1 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) | #2159A4 | 0.030 |
| Deuteranopia (no green cones) | #00509F | 0.036 |
| Tritanopia (no blue cones) | #006270 | 0.113 |
| Achromatopsia (no color) | #545454 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #364FA1
#364FA1
oklch(45.4% 0.136 267.9)
- #6C5200
#6C5200
oklch(45.3% 0.093 87.4)
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 #364FA1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.040
- Blueberry #464196 ΔE 0.041
- Cobalt #1E488F ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.046
- Twilight #4E518B ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.058
- Light Navy #155084 ΔE 0.058
Use #364FA1 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.