#605DBB
Closest named color: Iris (#6258C4). oklch(52.9% 0.144 281.7), rgb(96, 93, 187).
Aa
White text reads best on this color (5.55:1).
About this color
#605DBB is a medium-dark, vivid purple. In OKLCH its lightness is 53%, its chroma 0.144 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.020 away. White text reads best on it, at 5.55:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.144) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.78:1 |
| White text | 5.55:1 |
Values
| HEX | #605DBB |
| RGB | rgb(96, 93, 187) |
| HSL | hsl(242, 41%, 55%) |
| OKLCH | oklch(52.9% 0.144 281.7) |
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 #605DBB | 5.55:1 | AA | Lc -82.8 | Fine for body text |
| Black text on #605DBB | 3.78:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #605DBB text on white | 5.55:1 | AA | Lc 77.5 | Fine for body text |
| #605DBB text on black | 3.78:1 | AA large text | Lc -24.2 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F6
oklch(93.6% 0.018 279.1)
-
Step 200
200
#D5D7F1
oklch(88.6% 0.036 282.1)
-
Step 300
300
#B9BCEA
oklch(80.8% 0.065 281.9)
-
Step 400
400
#9699E0
oklch(70.8% 0.103 281.6)
-
Step 500
500
#7D7ED7
oklch(63.1% 0.132 281.4)
-
Step 600
600 (this color)
#605DBB
oklch(52.9% 0.144 281.7)
-
Step 700
700
#5654A9
oklch(49.1% 0.132 281.4)
-
Step 800
800
#464589
oklch(42.7% 0.11 281.3)
-
Step 900
900
#3B3A6E
oklch(37.6% 0.087 282.2)
-
Step 950
950
#222340
oklch(27.1% 0.053 280.7)
#605DBB 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) | #316CBE | 0.061 |
| Deuteranopia (no green cones) | #2B65B9 | 0.061 |
| Tritanopia (no blue cones) | #3F7183 | 0.123 |
| Achromatopsia (no color) | #686868 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #605DBB
#605DBB
oklch(52.9% 0.144 281.7)
- #796D00
#796D00
oklch(52.9% 0.111 101.8)
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 #605DBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.020
- Slate Blue #6A5ACD ΔE 0.033
- Dark Periwinkle #665FD1 ΔE 0.035
- Light Indigo #6D5ACF ΔE 0.038
- French Blue #436BAD ΔE 0.057
- Warm Blue #4B57DB ΔE 0.061
- Bluey Purple #6241C7 ΔE 0.067
- Mid Blue #276AB3 ΔE 0.069
Use #605DBB 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.