#5C71D3
Closest named color: Dark Periwinkle (#665FD1). oklch(58.1% 0.151 271.8), rgb(92, 113, 211).
Aa
Black text reads best on this color (4.75:1).
About this color
#5C71D3 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.151 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.045 away. Black text reads best on it, at 4.75:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.75:1 |
| White text | 4.41:1 |
Values
| HEX | #5C71D3 |
| RGB | rgb(92, 113, 211) |
| HSL | hsl(229, 57%, 59%) |
| OKLCH | oklch(58.1% 0.151 271.8) |
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 #5C71D3 | 4.41:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #5C71D3 | 4.75:1 | AA | Lc 33.7 | Non-text elements, placeholder text |
| #5C71D3 text on white | 4.41:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #5C71D3 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
#D0D8F3
oklch(88.5% 0.038 272.5)
-
Step 300
300
#B1BFEE
oklch(81% 0.068 271.9)
-
Step 400
400
#899CE5
oklch(70.7% 0.109 272.2)
-
Step 500
500
#6C82DD
oklch(63.1% 0.139 271.7)
-
Step 600
600 (this color)
#5C71D3
oklch(58.1% 0.151 271.8)
-
Step 700
700
#4657AF
oklch(49% 0.141 272)
-
Step 800
800
#39488E
oklch(42.7% 0.117 271.6)
-
Step 900
900
#313D71
oklch(37.7% 0.09 271.7)
-
Step 950
950
#1D2442
oklch(27% 0.057 272.2)
#5C71D3 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) | #437DD7 | 0.037 |
| Deuteranopia (no green cones) | #3373D1 | 0.041 |
| Tritanopia (no blue cones) | #108798 | 0.135 |
| Achromatopsia (no color) | #787878 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C71D3
#5C71D3
oklch(58.1% 0.151 271.8)
- #947700
#947700
oklch(58% 0.119 91.7)
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 #5C71D3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.045
- Royal Blue #4169E1 ΔE 0.045
- Windows Blue #3778BF ΔE 0.054
- Slate Blue #6A5ACD ΔE 0.057
- Light Indigo #6D5ACF ΔE 0.058
- Cornflower #6A79F7 ΔE 0.060
- Iris #6258C4 ΔE 0.063
- Medium Slate Blue #7B68EE ΔE 0.064
Use #5C71D3 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.