#5F61D0
Closest named color: Dark Periwinkle (#665FD1). oklch(55% 0.167 278.6), rgb(95, 97, 208).
Aa
White text reads best on this color (5.11:1).
About this color
#5F61D0 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.167 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.011 away. White text reads best on it, at 5.11:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.10:1 |
| White text | 5.11:1 |
Values
| HEX | #5F61D0 |
| RGB | rgb(95, 97, 208) |
| HSL | hsl(239, 55%, 59%) |
| OKLCH | oklch(55% 0.167 278.6) |
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 #5F61D0 | 5.11:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #5F61D0 | 4.10:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #5F61D0 text on white | 5.11:1 | AA | Lc 75.0 | Content text, not long reading |
| #5F61D0 text on black | 4.10:1 | AA large text | Lc -26.7 | 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
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F5
oklch(88.5% 0.042 278)
-
Step 300
300
#B5BCF1
oklch(80.8% 0.075 278.7)
-
Step 400
400
#9098EB
oklch(70.7% 0.121 278.6)
-
Step 500
500
#767CE4
oklch(63% 0.154 278.5)
-
Step 600
600 (this color)
#5F61D0
oklch(55% 0.167 278.6)
-
Step 700
700
#5051B6
oklch(49% 0.156 278.5)
-
Step 800
800
#424393
oklch(42.7% 0.129 278.9)
-
Step 900
900
#373975
oklch(37.6% 0.101 278.9)
-
Step 950
950
#202245
oklch(27% 0.064 278.7)
#5F61D0 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) | #1F72D4 | 0.067 |
| Deuteranopia (no green cones) | #0469CE | 0.072 |
| Tritanopia (no blue cones) | #297A8F | 0.145 |
| Achromatopsia (no color) | #6E6E6E | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F61D0
#5F61D0
oklch(55% 0.167 278.6)
- #837100
#837100
oklch(54.9% 0.113 98.1)
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 #5F61D0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.011
- Slate Blue #6A5ACD ΔE 0.022
- Light Indigo #6D5ACF ΔE 0.025
- Iris #6258C4 ΔE 0.027
- Warm Blue #4B57DB ΔE 0.043
- Royal Blue #4169E1 ΔE 0.044
- Neon Blue #4361EE ΔE 0.057
- Medium Slate Blue #7B68EE ΔE 0.065
Use #5F61D0 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.