#565FBF
Closest named color: Iris (#6258C4). oklch(52.8% 0.148 276), rgb(86, 95, 191).
Aa
White text reads best on this color (5.54:1).
About this color
#565FBF is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.148 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.025 away. White text reads best on it, at 5.54:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.78:1 |
| White text | 5.54:1 |
Values
| HEX | #565FBF |
| RGB | rgb(86, 95, 191) |
| HSL | hsl(235, 45%, 54%) |
| OKLCH | oklch(52.8% 0.148 276) |
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 #565FBF | 5.54:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #565FBF | 3.78:1 | AA large text | Lc 26.6 | Dividers and decoration only |
| #565FBF text on white | 5.54:1 | AA | Lc 77.5 | Fine for body text |
| #565FBF text on black | 3.78:1 | AA large text | Lc -24.3 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D8F2
oklch(88.6% 0.036 275.3)
-
Step 300
300
#B4BEEC
oklch(80.9% 0.066 275.3)
-
Step 400
400
#8E9BE3
oklch(70.8% 0.106 275.5)
-
Step 500
500
#7480DB
oklch(63.1% 0.137 276.1)
-
Step 600
600 (this color)
#565FBF
oklch(52.8% 0.148 276)
-
Step 700
700
#4D56AD
oklch(49.1% 0.137 275.7)
-
Step 800
800
#3F468C
oklch(42.6% 0.115 276.1)
-
Step 900
900
#353C70
oklch(37.7% 0.089 275.5)
-
Step 950
950
#1F2342
oklch(26.9% 0.058 276.3)
#565FBF 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) | #2F6DC2 | 0.050 |
| Deuteranopia (no green cones) | #1F64BD | 0.054 |
| Tritanopia (no blue cones) | #217486 | 0.130 |
| Achromatopsia (no color) | #686868 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #565FBF
#565FBF
oklch(52.8% 0.148 276)
- #7E6A00
#7E6A00
oklch(52.8% 0.109 96)
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 #565FBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.025
- Dark Periwinkle #665FD1 ΔE 0.037
- Slate Blue #6A5ACD ΔE 0.038
- Light Indigo #6D5ACF ΔE 0.044
- French Blue #436BAD ΔE 0.050
- Warm Blue #4B57DB ΔE 0.051
- Mid Blue #276AB3 ΔE 0.058
- Royal Blue #4169E1 ΔE 0.058
Use #565FBF 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.