#5F6FD8
Closest named color: Dark Periwinkle (#665FD1). oklch(58.2% 0.16 273.8), rgb(95, 111, 216).
Aa
Black text reads best on this color (4.75:1).
About this color
#5F6FD8 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.160 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.039 away. Black text reads best on it, at 4.75:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.75:1 |
| White text | 4.41:1 |
Values
| HEX | #5F6FD8 |
| RGB | rgb(95, 111, 216) |
| HSL | hsl(232, 61%, 61%) |
| OKLCH | oklch(58.2% 0.16 273.8) |
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 #5F6FD8 | 4.41:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #5F6FD8 | 4.75:1 | AA | Lc 33.7 | Non-text elements, placeholder text |
| #5F6FD8 text on white | 4.41:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #5F6FD8 text on black | 4.75:1 | AA | Lc -31.3 | Non-text elements, placeholder text |
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
#D0D8F4
oklch(88.5% 0.04 272.9)
-
Step 300
300
#B2BEF0
oklch(81% 0.072 274.2)
-
Step 400
400
#8A9BE8
oklch(70.7% 0.114 273.6)
-
Step 500
500
#6F80E1
oklch(63.1% 0.146 274)
-
Step 600
600 (this color)
#5F6FD8
oklch(58.2% 0.16 273.8)
-
Step 700
700
#4855B3
oklch(49% 0.148 273.7)
-
Step 800
800
#3B4691
oklch(42.6% 0.123 273.7)
-
Step 900
900
#323C74
oklch(37.8% 0.096 273.3)
-
Step 950
950
#1D2344
oklch(26.9% 0.062 273.8)
#5F6FD8 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) | #3B7DDC | 0.046 |
| Deuteranopia (no green cones) | #2973D6 | 0.051 |
| Tritanopia (no blue cones) | #178799 | 0.143 |
| Achromatopsia (no color) | #787878 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F6FD8
#5F6FD8
oklch(58.2% 0.16 273.8)
- #927800
#927800
oklch(58% 0.119 93.7)
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 #5F6FD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.039
- Royal Blue #4169E1 ΔE 0.042
- Slate Blue #6A5ACD ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.052
- Cornflower #6A79F7 ΔE 0.054
- Medium Slate Blue #7B68EE ΔE 0.054
- Iris #6258C4 ΔE 0.061
- Neon Blue #4361EE ΔE 0.062
Use #5F6FD8 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.