#5365C8
Closest named color: Dark Periwinkle (#665FD1). oklch(54.4% 0.154 272.5), rgb(83, 101, 200).
Aa
White text reads best on this color (5.16:1).
About this color
#5365C8 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.154 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.032 away. White text reads best on it, at 5.16:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.06:1 |
| White text | 5.16:1 |
Values
| HEX | #5365C8 |
| RGB | rgb(83, 101, 200) |
| HSL | hsl(231, 52%, 55%) |
| OKLCH | oklch(54.4% 0.154 272.5) |
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 #5365C8 | 5.16:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #5365C8 | 4.06:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #5365C8 text on white | 5.16:1 | AA | Lc 75.3 | Fine for body text |
| #5365C8 text on black | 4.06:1 | AA large text | Lc -26.4 | 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 600.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D0D8F3
oklch(88.5% 0.038 272.5)
-
Step 300
300
#B1BEEE
oklch(80.8% 0.07 272.9)
-
Step 400
400
#899CE6
oklch(70.8% 0.111 272.3)
-
Step 500
500
#6D81DE
oklch(63% 0.141 272.6)
-
Step 600
600 (this color)
#5365C8
oklch(54.4% 0.154 272.5)
-
Step 700
700
#4757B1
oklch(49.2% 0.143 272.5)
-
Step 800
800
#3A478F
oklch(42.6% 0.119 272.7)
-
Step 900
900
#313C72
oklch(37.6% 0.093 272.5)
-
Step 950
950
#1D2443
oklch(27.1% 0.058 272.4)
#5365C8 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) | #3272CC | 0.042 |
| Deuteranopia (no green cones) | #1D68C6 | 0.048 |
| Tritanopia (no blue cones) | #007B8D | 0.135 |
| Achromatopsia (no color) | #6D6D6D | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5365C8
#5365C8
oklch(54.4% 0.154 272.5)
- #876D00
#876D00
oklch(54.4% 0.111 92.3)
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 #5365C8, closest first.
No curated palette has a color within ΔE 0.04 of #5365C8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.032
- Iris #6258C4 ΔE 0.036
- Slate Blue #6A5ACD ΔE 0.041
- Royal Blue #4169E1 ΔE 0.042
- Light Indigo #6D5ACF ΔE 0.045
- Warm Blue #4B57DB ΔE 0.048
- French Blue #436BAD ΔE 0.051
- Mid Blue #276AB3 ΔE 0.057
Use #5365C8 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.