#603F97
Closest named color: Rebecca Purple (#663399). oklch(45% 0.139 297.9), rgb(96, 63, 151).
Aa
White text reads best on this color (7.90:1).
About this color
#603F97 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.139 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.028 away. White text reads best on it, at 7.90:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #603F97 |
| RGB | rgb(96, 63, 151) |
| HSL | hsl(263, 41%, 42%) |
| OKLCH | oklch(45% 0.139 297.9) |
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 #603F97 | 7.90:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #603F97 | 2.65:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #603F97 text on white | 7.90:1 | AAA | Lc 87.1 | Fine for body text |
| #603F97 text on black | 2.65:1 | Fails | Lc -15.0 | Not readable |
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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DCD3F4
oklch(88.4% 0.046 297.9)
-
Step 300
300
#C6B6EF
oklch(80.9% 0.081 297.4)
-
Step 400
400
#AB8EE7
oklch(70.8% 0.13 298)
-
Step 500
500
#976FDF
oklch(63.1% 0.165 298)
-
Step 600
600
#8254CD
oklch(55.6% 0.18 297.8)
-
Step 700
700
#6E43B1
oklch(49% 0.168 297.9)
-
Step 800
800 (this color)
#603F97
oklch(45% 0.139 297.9)
-
Step 900
900
#493273
oklch(37.8% 0.108 297.3)
-
Step 950
950
#2B1E43
oklch(27.1% 0.068 298)
#603F97 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) | #13519A | 0.099 |
| Deuteranopia (no green cones) | #215095 | 0.091 |
| Tritanopia (no blue cones) | #545165 | 0.107 |
| Achromatopsia (no color) | #515151 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603F97
#603F97
oklch(45% 0.139 297.9)
- #515C00
#515C00
oklch(44.9% 0.104 117.5)
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 #603F97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.028
- Blueberry #464196 ΔE 0.044
- Dark Slate Blue #483D8B ΔE 0.047
- Twilight #4E518B ΔE 0.059
- Dusk #4E5481 ΔE 0.075
- Bluey Purple #6241C7 ΔE 0.076
- Blue With A Hint Of Purple #533CC6 ΔE 0.080
- Light Eggplant #894585 ΔE 0.088
Use #603F97 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.