#606ACA
Closest named color: Dark Periwinkle (#665FD1). oklch(56.3% 0.147 276.1), rgb(96, 106, 202).
Aa
White text reads best on this color (4.75:1).
About this color
#606ACA is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.147 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.031 away. White text reads best on it, at 4.75:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.41:1 |
| White text | 4.75:1 |
Values
| HEX | #606ACA |
| RGB | rgb(96, 106, 202) |
| HSL | hsl(234, 50%, 58%) |
| OKLCH | oklch(56.3% 0.147 276.1) |
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 #606ACA | 4.75:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #606ACA | 4.41:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #606ACA text on white | 4.75:1 | AA | Lc 72.8 | Content text, not long reading |
| #606ACA text on black | 4.41:1 | AA large text | Lc -28.8 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D8F2
oklch(88.6% 0.036 275.3)
-
Step 300
300
#B5BEEC
oklch(81% 0.066 276.2)
-
Step 400
400
#8F9BE2
oklch(70.8% 0.105 276)
-
Step 500
500
#7480DA
oklch(63.1% 0.135 276.1)
-
Step 600
600 (this color)
#606ACA
oklch(56.3% 0.147 276.1)
-
Step 700
700
#4E56AC
oklch(49.1% 0.136 276.2)
-
Step 800
800
#40478C
oklch(42.8% 0.113 276.2)
-
Step 900
900
#363C70
oklch(37.8% 0.088 276.3)
-
Step 950
950
#1F2341
oklch(26.9% 0.056 276.2)
#606ACA 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) | #3E77CE | 0.046 |
| Deuteranopia (no green cones) | #326FC8 | 0.049 |
| Tritanopia (no blue cones) | #317F90 | 0.130 |
| Achromatopsia (no color) | #737373 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #606ACA
#606ACA
oklch(56.3% 0.147 276.1)
- #8A7400
#8A7400
oklch(56.3% 0.116 95.8)
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 #606ACA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.031
- Slate Blue #6A5ACD ΔE 0.041
- Light Indigo #6D5ACF ΔE 0.043
- Iris #6258C4 ΔE 0.044
- Royal Blue #4169E1 ΔE 0.050
- Windows Blue #3778BF ΔE 0.059
- French Blue #436BAD ΔE 0.060
- Warm Blue #4B57DB ΔE 0.065
Use #606ACA 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.