#5C61D1
Closest named color: Dark Periwinkle (#665FD1). oklch(54.8% 0.169 277.3), rgb(92, 97, 209).
Aa
White text reads best on this color (5.13:1).
About this color
#5C61D1 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.169 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.014 away. White text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.08:1 |
| White text | 5.13:1 |
Values
| HEX | #5C61D1 |
| RGB | rgb(92, 97, 209) |
| HSL | hsl(237, 56%, 59%) |
| OKLCH | oklch(54.8% 0.169 277.3) |
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 #5C61D1 | 5.13:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #5C61D1 | 4.08:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #5C61D1 text on white | 5.13:1 | AA | Lc 75.1 | Fine for body text |
| #5C61D1 text on black | 4.08:1 | AA large text | Lc -26.6 | 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
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F6
oklch(88.5% 0.043 278.2)
-
Step 300
300
#B4BDF2
oklch(81% 0.076 277.1)
-
Step 400
400
#8E99EC
oklch(70.8% 0.122 277.1)
-
Step 500
500
#747DE6
oklch(63.2% 0.156 277.3)
-
Step 600
600 (this color)
#5C61D1
oklch(54.8% 0.169 277.3)
-
Step 700
700
#4E52B7
oklch(49.1% 0.157 277.3)
-
Step 800
800
#404394
oklch(42.6% 0.13 277.7)
-
Step 900
900
#353A76
oklch(37.7% 0.101 276.8)
-
Step 950
950
#1F2245
oklch(26.9% 0.064 277.4)
#5C61D1 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) | #1C72D5 | 0.065 |
| Deuteranopia (no green cones) | #0069CF | 0.069 |
| Tritanopia (no blue cones) | #1B7B90 | 0.148 |
| Achromatopsia (no color) | #6D6D6D | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C61D1
#5C61D1
oklch(54.8% 0.169 277.3)
- #847000
#847000
oklch(54.8% 0.113 96.7)
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 #5C61D1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.014
- Slate Blue #6A5ACD ΔE 0.025
- Light Indigo #6D5ACF ΔE 0.028
- Iris #6258C4 ΔE 0.028
- Warm Blue #4B57DB ΔE 0.039
- Royal Blue #4169E1 ΔE 0.041
- Neon Blue #4361EE ΔE 0.053
- Medium Slate Blue #7B68EE ΔE 0.067
Use #5C61D1 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.