#5E6FD3
Closest named color: Dark Periwinkle (#665FD1). oklch(57.8% 0.153 273.4), rgb(94, 111, 211).
Aa
Black text reads best on this color (4.69:1).
About this color
#5E6FD3 is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.153 and its hue 273°. 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 4.69:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.69:1 |
| White text | 4.47:1 |
Values
| HEX | #5E6FD3 |
| RGB | rgb(94, 111, 211) |
| HSL | hsl(231, 57%, 60%) |
| OKLCH | oklch(57.8% 0.153 273.4) |
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 #5E6FD3 | 4.47:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #5E6FD3 | 4.69:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #5E6FD3 text on white | 4.47:1 | AA large text | Lc 70.9 | Content text, not long reading |
| #5E6FD3 text on black | 4.69:1 | AA | Lc -30.8 | 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
#D1D8F3
oklch(88.5% 0.038 274.1)
-
Step 300
300
#B2BEEE
oklch(80.9% 0.069 273.8)
-
Step 400
400
#8A9BE6
oklch(70.6% 0.112 273.5)
-
Step 500
500
#6F81DE
oklch(63.1% 0.141 273.5)
-
Step 600
600 (this color)
#5E6FD3
oklch(57.8% 0.153 273.4)
-
Step 700
700
#4856B0
oklch(49% 0.143 273.3)
-
Step 800
800
#3B478F
oklch(42.7% 0.119 273.2)
-
Step 900
900
#323C72
oklch(37.6% 0.093 273.3)
-
Step 950
950
#1D2443
oklch(27.1% 0.058 272.4)
#5E6FD3 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) | #407CD7 | 0.042 |
| Deuteranopia (no green cones) | #3072D1 | 0.046 |
| Tritanopia (no blue cones) | #1C8597 | 0.136 |
| Achromatopsia (no color) | #777777 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5E6FD3
#5E6FD3
oklch(57.8% 0.153 273.4)
- #917700
#917700
oklch(57.7% 0.118 93.6)
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 #5E6FD3, 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 0.044
- Slate Blue #6A5ACD ΔE 0.052
- Light Indigo #6D5ACF ΔE 0.052
- Windows Blue #3778BF ΔE 0.057
- Iris #6258C4 ΔE 0.059
- Medium Slate Blue #7B68EE ΔE 0.061
- Cornflower #6A79F7 ΔE 0.061
Use #5E6FD3 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.