#5E6DDB
Closest named color: Dark Periwinkle (#665FD1). oklch(57.9% 0.167 274.1), rgb(94, 109, 219).
Aa
Black text reads best on this color (4.68:1).
About this color
#5E6DDB is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.167 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.036 away. Black text reads best on it, at 4.68:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.68:1 |
| White text | 4.48:1 |
Values
| HEX | #5E6DDB |
| RGB | rgb(94, 109, 219) |
| HSL | hsl(233, 63%, 61%) |
| OKLCH | oklch(57.9% 0.167 274.1) |
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 #5E6DDB | 4.48:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #5E6DDB | 4.68:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #5E6DDB text on white | 4.48:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #5E6DDB text on black | 4.68:1 | 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
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#D0D8F6
oklch(88.6% 0.042 273.7)
-
Step 300
300
#B1BEF2
oklch(81% 0.075 273.7)
-
Step 400
400
#8A9AEB
oklch(70.7% 0.12 274.4)
-
Step 500
500
#6E7FE5
oklch(63.1% 0.154 274.1)
-
Step 600
600 (this color)
#5E6DDB
oklch(57.9% 0.167 274.1)
-
Step 700
700
#4854B7
oklch(49.1% 0.155 274)
-
Step 800
800
#3B4594
oklch(42.6% 0.129 274.2)
-
Step 900
900
#323B76
oklch(37.7% 0.1 274.1)
-
Step 950
950
#1D2345
oklch(27% 0.063 273.9)
#5E6DDB 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) | #337DDF | 0.053 |
| Deuteranopia (no green cones) | #1B72D9 | 0.057 |
| Tritanopia (no blue cones) | #07869A | 0.147 |
| Achromatopsia (no color) | #777777 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5E6DDB
#5E6DDB
oklch(57.9% 0.167 274.1)
- #917800
#917800
oklch(57.9% 0.119 94.3)
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 #5E6DDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.036
- Royal Blue #4169E1 ΔE 0.037
- Slate Blue #6A5ACD ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.049
- Medium Slate Blue #7B68EE ΔE 0.051
- Cornflower #6A79F7 ΔE 0.053
- Neon Blue #4361EE ΔE 0.055
- Iris #6258C4 ΔE 0.059
Use #5E6DDB 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.