#603EA3
Closest named color: Rebecca Purple (#663399). oklch(45.7% 0.156 295), rgb(96, 62, 163).
Aa
White text reads best on this color (7.73:1).
About this color
#603EA3 is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.156 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.029 away. White text reads best on it, at 7.73:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.71:1 |
| White text | 7.73:1 |
Values
| HEX | #603EA3 |
| RGB | rgb(96, 62, 163) |
| HSL | hsl(260, 45%, 44%) |
| OKLCH | oklch(45.7% 0.156 295) |
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 #603EA3 | 7.73:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #603EA3 | 2.71:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #603EA3 text on white | 7.73:1 | AAA | Lc 86.5 | Fine for body text |
| #603EA3 text on black | 2.71:1 | Fails | Lc -15.6 | 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 800.
-
Step 50
50
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7FA
oklch(93.7% 0.026 295.5)
-
Step 200
200
#DBD3F8
oklch(88.5% 0.051 295.2)
-
Step 300
300
#C4B5F6
oklch(80.8% 0.092 294.8)
-
Step 400
400
#A88CF1
oklch(70.7% 0.146 295.2)
-
Step 500
500
#946CEC
oklch(63.2% 0.186 294.9)
-
Step 600
600
#804FDA
oklch(55.6% 0.202 295.2)
-
Step 700
700
#6C3FBD
oklch(49.1% 0.187 295)
-
Step 800
800 (this color)
#603EA3
oklch(45.7% 0.156 295)
-
Step 900
900
#482F7A
oklch(37.6% 0.122 295.3)
-
Step 950
950
#2A1D47
oklch(27.1% 0.076 295.1)
#603EA3 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) | #0054A6 | 0.105 |
| Deuteranopia (no green cones) | #0351A1 | 0.104 |
| Tritanopia (no blue cones) | #4F546A | 0.122 |
| Achromatopsia (no color) | #535353 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603EA3
#603EA3
oklch(45.7% 0.156 295)
- #565D00
#565D00
oklch(45.6% 0.103 114.8)
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 #603EA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.029
- Blueberry #464196 ΔE 0.049
- Dark Slate Blue #483D8B ΔE 0.057
- Bluey Purple #6241C7 ΔE 0.057
- Blue With A Hint Of Purple #533CC6 ΔE 0.061
- Blurple #5539CC ΔE 0.070
- Twilight #4E518B ΔE 0.070
- Iris #6258C4 ΔE 0.077
Use #603EA3 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.