#605ACC
Closest named color: Iris (#6258C4). oklch(53.5% 0.171 281.3), rgb(96, 90, 204).
Aa
White text reads best on this color (5.48:1).
About this color
#605ACC is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.171 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.013 away. White text reads best on it, at 5.48:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.171) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.83:1 |
| White text | 5.48:1 |
Values
| HEX | #605ACC |
| RGB | rgb(96, 90, 204) |
| HSL | hsl(243, 53%, 58%) |
| OKLCH | oklch(53.5% 0.171 281.3) |
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 #605ACC | 5.48:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #605ACC | 3.83:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #605ACC text on white | 5.48:1 | AA | Lc 77.0 | Fine for body text |
| #605ACC text on black | 3.83:1 | AA large text | Lc -24.7 | 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
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D4D6F6
oklch(88.5% 0.044 282.6)
-
Step 300
300
#B7BBF2
oklch(80.8% 0.078 281.3)
-
Step 400
400
#9497EB
oklch(70.8% 0.122 281.2)
-
Step 500
500
#7B7AE5
oklch(63.1% 0.157 281.3)
-
Step 600
600 (this color)
#605ACC
oklch(53.5% 0.171 281.3)
-
Step 700
700
#554FB7
oklch(49.1% 0.159 281.4)
-
Step 800
800
#454194
oklch(42.6% 0.132 281.4)
-
Step 900
900
#3A3876
oklch(37.7% 0.103 281.7)
-
Step 950
950
#222145
oklch(26.9% 0.066 282.3)
#605ACC 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) | #066DD0 | 0.080 |
| Deuteranopia (no green cones) | #0065CA | 0.078 |
| Tritanopia (no blue cones) | #31748A | 0.147 |
| Achromatopsia (no color) | #696969 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #605ACC
#605ACC
oklch(53.5% 0.171 281.3)
- #7B6E00
#7B6E00
oklch(53.4% 0.111 101.2)
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 #605ACC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.013
- Slate Blue #6A5ACD ΔE 0.015
- Dark Periwinkle #665FD1 ΔE 0.017
- Light Indigo #6D5ACF ΔE 0.021
- Warm Blue #4B57DB ΔE 0.039
- Bluey Purple #6241C7 ΔE 0.054
- Royal Blue #4169E1 ΔE 0.055
- Neon Blue #4361EE ΔE 0.063
Use #605ACC 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.