#603099
Closest named color: Rebecca Purple (#663399). oklch(42.9% 0.163 300.6), rgb(96, 48, 153).
Aa
White text reads best on this color (8.82:1).
About this color
#603099 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.163 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.014 away. White text reads best on it, at 8.82:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.38:1 |
| White text | 8.82:1 |
Values
| HEX | #603099 |
| RGB | rgb(96, 48, 153) |
| HSL | hsl(267, 52%, 39%) |
| OKLCH | oklch(42.9% 0.163 300.6) |
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 #603099 | 8.82:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #603099 | 2.38:1 | Fails | Lc 14.4 | Not readable |
| #603099 text on white | 8.82:1 | AAA | Lc 89.6 | Fine for body text |
| #603099 text on black | 2.38:1 | Fails | Lc -12.7 | 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
#F7F4FD
oklch(97.2% 0.012 301.3)
-
Step 100
100
#EDE6FA
oklch(93.6% 0.028 301.7)
-
Step 200
200
#DED2F8
oklch(88.5% 0.053 299.7)
-
Step 300
300
#CAB3F5
oklch(80.9% 0.095 300.3)
-
Step 400
400
#B188F0
oklch(70.7% 0.152 300.8)
-
Step 500
500
#9E66EB
oklch(63.1% 0.194 300.3)
-
Step 600
600
#8A48D9
oklch(55.6% 0.211 300.5)
-
Step 700
700
#7537BC
oklch(49% 0.197 300.5)
-
Step 800
800 (this color)
#603099
oklch(42.9% 0.163 300.6)
-
Step 900
900
#4E2C79
oklch(37.7% 0.127 300.8)
-
Step 950
950
#2D1B47
oklch(27% 0.08 300)
#603099 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) | #004A9C | 0.117 |
| Deuteranopia (no green cones) | #004A97 | 0.118 |
| Tritanopia (no blue cones) | #544860 | 0.122 |
| Achromatopsia (no color) | #4A4A4A | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603099
#603099
oklch(42.9% 0.163 300.6)
- #485700
#485700
oklch(42.9% 0.102 120.5)
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 #603099, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.014
- Dark Slate Blue #483D8B ΔE 0.055
- Blueberry #464196 ΔE 0.056
- Chrysanthemum #560BAD ΔE 0.062
- Grape #7209B7 ΔE 0.068
- Imperial Purple #480CA8 ΔE 0.077
- Blue With A Hint Of Purple #533CC6 ΔE 0.080
- Bluey Purple #6241C7 ΔE 0.081
Use #603099 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.