#5F61D5
Closest named color: Dark Periwinkle (#665FD1). oklch(55.3% 0.174 278.3), rgb(95, 97, 213).
Aa
White text reads best on this color (5.05:1).
About this color
#5F61D5 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.174 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.012 away. White text reads best on it, at 5.05:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.174) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #5F61D5 |
| RGB | rgb(95, 97, 213) |
| HSL | hsl(239, 58%, 60%) |
| OKLCH | oklch(55.3% 0.174 278.3) |
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 #5F61D5 | 5.05:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #5F61D5 | 4.15:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #5F61D5 text on white | 5.05:1 | AA | Lc 74.6 | Content text, not long reading |
| #5F61D5 text on black | 4.15:1 | AA large text | Lc -27.1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F6
oklch(88.5% 0.043 278.2)
-
Step 300
300
#B4BCF3
oklch(80.8% 0.078 278.1)
-
Step 400
400
#8F98EE
oklch(70.8% 0.126 278.1)
-
Step 500
500
#757CE8
oklch(63.2% 0.16 278)
-
Step 600
600 (this color)
#5F61D5
oklch(55.3% 0.174 278.3)
-
Step 700
700
#4F50B9
oklch(49% 0.162 278.2)
-
Step 800
800
#414296
oklch(42.6% 0.135 278.5)
-
Step 900
900
#363977
oklch(37.6% 0.104 278.1)
-
Step 950
950
#202246
oklch(27.1% 0.066 278.6)
#5F61D5 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) | #1474D9 | 0.072 |
| Deuteranopia (no green cones) | #006AD3 | 0.072 |
| Tritanopia (no blue cones) | #217C92 | 0.152 |
| Achromatopsia (no color) | #6F6F6F | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F61D5
#5F61D5
oklch(55.3% 0.174 278.3)
- #847200
#847200
oklch(55.2% 0.114 98.2)
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 #5F61D5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.012
- Slate Blue #6A5ACD ΔE 0.024
- Light Indigo #6D5ACF ΔE 0.026
- Iris #6258C4 ΔE 0.032
- Warm Blue #4B57DB ΔE 0.040
- Royal Blue #4169E1 ΔE 0.041
- Neon Blue #4361EE ΔE 0.051
- Medium Slate Blue #7B68EE ΔE 0.060
Use #5F61D5 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.